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成都种植义齿的多少钱飞度【养生医生】成都牙齿矫正术的价格

2018年06月21日 04:33:40    日报  参与评论()人

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邛崃美白牙齿多少钱四川哪家种植牙最好 Racetrack Playa is a dry lake bed located 3,608 feet above sea level in Death Valley National Park, California. The playa is named after the ;racetracks; left by stones that mysteriously skid across its surface.跑道干湖是坐落在加利福尼亚国家公园死亡之谷中的一个干涸的湖床,海拔3608米。之所以被命名为“跑道”,跟在湖床中的石头有关,这些石头从湖床表面划过,并留下一道道让人匪夷所思的滑行“轨迹”。The Racetrack is primarily covered with hexagonal saucers of dry mud, left after a very short season when the lake bed is covered with a shallow layer of water after rains wash down from the surrounding mountains and into the playa. But marring this surface is the creepy evidence of stones that move on their own.湖床表面覆盖着一层龟裂的干泥,这是由于每年有一段时间雨水从周围的山上流下来,在湖汇聚成浅浅的一层,湖水蒸发之后,就剩下了龟裂的湖泥。但是这些能自行移动的石头在此显得极不协调。Sliding slowly without any intervention for distances as long as 1,500 feet, the sailing stones have never been filmed in motion, yet they#39;re definitely on the move. The strange phenomenon only happens every few years, and the tracks are left for several years for visitors to ponder. One hypothesis is that winds -- which can howl at up to 90 mph -- push the stones across the slick mud left as the lake bed dries up after a downpour. A second similar hypothesis poses that after a thin sheet of rain falls over the playa and night temperatures drop to below freezing, a layer of ice forms across the surface of the lake bed and the stones slide across the ice with the wind.如果没有任何干预,这些石头能慢慢地移动长达1500英尺的距离。虽然没有用仪器记录下来,但是这些石头绝对是在运动着。这个奇怪的现象每隔几年发生一次,留下一道道痕迹给游客们去思考。有人认为是风的作用——这里的风速最高可以达到90英里每小时,干涸的湖床在一场大雨之后湖底因为积水而变的很滑,就有可能产生这种结果。第二个类似的说法认为,如果下一场小雨,加上夜间零度以下的温度,湖床表面就有可能结冰,这样风吹着石头移动起来就比较合理了。The only way to find out for sure would be to set up cameras and environmental sensor tools to understand just what makes these rocks move. Until then, they will remain a mind-blowing mystery!找到真相唯一的方法就是在此处设立摄像机,进行环境监控。在真正找到之前,这些石头仍然让人百思不得其解。 /201209/201408成都牙齿缺损的修复多少钱

眉山市中医院看冷光洁白洁牙多少钱The worst drought for 50 years is inflicting huge damage on the US maize crop, with serious consequences for the overall international food supply. 美国玉米作物正受到50年来最严重旱情的巨大破坏,使国际粮食总体供应情况受到了重大影响。 The situation reminds us that even the most advanced agricultural systems are subject to the vagaries of the weather, leading to volatility in supplies and prices not just on domestic markets but also internationally. Climate change and extreme weather events will further complicate the picture. 当前形势提醒我们,即使是最发达的农业体系也无法摆脱天气无常的影响,这不仅会导致国内市场供给和价格波动,还会波及国际市场。气候变化和极端天气现象更使情况雪上加霜。 US maize production had been expected to increase to record levels this year. That view will prove optimistic. Much of the reduced crop will be claimed by biofuel production in line with US federal mandates, leaving even less for food and feed markets. The August US Department of Agriculture estimates, announced today, will give a more precise idea for just how much the maize crop is reduced. Few people are expecting good news. 人们原本预料,今年美国玉米产量将打破历史最高纪录。事实明这种观点过于乐观了。根据联邦法令,歉收的玉米中,相当大一部分将被用于生产生物燃料,因而进入粮食和饲料市场的玉米就更少了。 Maize prices have aly gone higher than their 2008 and 2011 peaks, increasing by 23 per cent during July alone. Wheat prices have followed maize prices upwards. Repercussions are aly being felt in the US livestock sector. 近期玉米价格已经超过了2008年和2011年的峰值,单是7月份就上涨了23%。而小麦价格则追随玉米价格上涨。美国畜牧业已经感受到了价格上涨的冲击。 Unsurprisingly, the media has started talking about the possibility of a food crisis. Whether that happens depends not only on how long the drought lasts and how much damage it does to crops but on how far its impact sps to other markets, whether there are further supply shocks and how countries react to the price movements. 媒体已经开始谈论出现粮食危机的可能性,这一点都不令人惊讶。是否会发生粮食危机不仅取决于旱情持续时间有多长、对农作物的伤害有多大,也取决于其影响向其他市场扩散的程度,以及是否会有后续供给冲击、各国如何应对价格波动。 In 2007-08 governments tended to react in a disorganised and erratic manner, which often accentuated global price rises, as was the case with the imposition of export restraints. Often the measures were not even effective in meeting the objective of stabilising domestic prices, as they often led to panic buying and hoarding. 2007-08年,各国政府的反应无序混乱,这往往加剧了国际价格上涨,其效果如同实施出口限制措施一样。但这些措施通常会引发抢购和囤积行为,达不到有效稳定国内价格的目标。 Given all this, governments should be cautious, especially considering that high prices are not necessarily negative. Attractive producer prices will be needed in the coming months to entice producers to embark on a much needed increase of crop cultivation, especially in the southern hemisphere. 考虑到上述种种,政府应该谨慎行事,尤其是高价并不一定产生负面效果。未来几个月,只有生产者价格足够诱人,才能吸引人们扩大种植——这是目前亟需的——尤其是在南半球。 Some governments will be called to take a number of steps to alleviate the impact of the situation on the poorest consumers, for example through the targeted distribution of food at subsidised prices, increased reliance on non-commodities crops such as roots, tubers, and beans, and assisting small producers to get better seeds and other basic inputs. Over the longer term, strategies to increase local production and self-sufficiency should be implemented. 我们将呼吁一些国家的政府采取多项措施,缓解当前局势对最穷消费者的冲击,例如以补贴价格定向分配粮食,增加对根茎、块茎和豆类等非大宗商品类作物的依赖,以及帮助小规模种植者取得更优质的种子和其他基本的投入品。从长远来看,应当采取增加当地产量、提高自给自足水平的策略。 Fortunately rice supplies in 2012 are plentiful and rice prices stable, but they could also be driven higher by increasing prices of other cereals. Rice market stocks were also not problematic in 2007-08 but prices nevertheless increased dramatically. A lack of transparency and unco-ordinated unilateral actions by importing and exporting countries and media coverage all contributed to creating panic. 幸运的是,2012年大米供应充足,价格稳定,但米价也可能因为其他谷类价格的上涨而走高。2007-08年,大米市场并不短缺,但价格却出现大幅上涨。透明度不高、进口国与出口国未经协调的单边行动,以及媒体的报道,都产生了催生恐慌的效果。 With world prices of cereals rising, the competition between the food, feed and fuel sectors for crops such as maize, sugar and oilseeds is likely to intensify. One way to alleviate some of the tension would be to lower or temporarily suspend the mandates on biofuels. At the moment, the renewable energy production in the US is reported to have reached 15.2bn gallons in 2012, for which it used the equivalent of some 121.9m tonnes or about 40 per cent of US maize production. An immediate, temporary suspension of that mandate would give some respite to the market and allow more of the crop to be channelled towards food and feed uses. 随着全球谷物价格攀升,粮食、饲料和燃料行业对玉米、糖和油籽等作物的争夺可能升级。暂时停止关于生物燃料的法令或者降低其执行力度,是缓解部分紧张的一个办法。目前,2012年美国这一可再生能源的产量据报道已达到152亿加仑,消耗的玉米约为1.219亿吨,占到美国玉米总产量的40%。立即暂停执行上述联邦法令,将为市场提供一定的喘息空间,让更多的玉米流向粮食和饲料用途。 The US drought leaves global markets highly vulnerable to any further supply side shocks. While the current situation is precarious and could deteriorate further if unfavourable weather conditions persist, it is not a crisis yet. Countries and the UN are better equipped than in 2007-08 to face high food prices, with the introduction of its Agricultural Market Information System, which and promote co-ordination of policy responses. 在经受了美国旱情的影响之后,全球市场已无力再承受供应方面任何的进一步冲击。尽管当前形势不确定,而且如果恶劣的天气状况持续的话,形势可能还会恶化,但目前尚未出现危机。与2007-08年相比,目前各国与联合国(UN)更有把握应对高粮价,这是因为联合国启动了能够促进各国政策反应协调水平的农产品市场信息系统(Agricultural Market Information System)。 However, risks are high and the wrong responses to the current situation could create it. It is vitally important that any unilateral policy reactions from countries, whether importers or exporters, do not further destabilise the situation. 然而,风险仍然很高,在应对当前局势过程中,如果方法不当也可能酿成危机。至关重要的是,无论是出口国还是进口国,任何单方面的政策反应都应避免加剧局势的不稳定。 The writer is the director-general of the Food and Agricultural Organization of the UN 本文作者为联合国粮农组织(Food and Agricultural Organization of the UN)总干事 /201208/195074 Global gold demand hit its lowest level in more than two years in the second quarter amid a weakening appetite for the yellow metal in India and China. 随着印度和中国黄金需求的下降,今年二季度全球黄金需求降至两年多以来的最低水平。 Demand in the period fell by 7% to 990 metric tons from the second quarter of 2011, according to the World Gold Council, an industry group. This is the lowest since the first quarter of 2010. 根据行业组织世界黄金协会(World Gold Council)提供的数据,二季度全球黄金需求降至990吨,同比下降7%,为2010年一季度以来的最低水平。 India and China, the world#39;s heavyweight gold consumers that together accounted for 45% of second-quarter gold demand, both cut back their purchases of the precious metal amid concerns about growth, according to the council#39;s quarterly report on the gold market, which was released Thursday. 世界黄金协会周四发布的黄金市场季度报告显示,作为全球主要的黄金消费国,印度和中国二季度黄金需求占全球黄金总需求的45%。由于经济增长放缓引发的担忧,两国都减少了黄金这种贵金属的购买量。 The demand from exchange-traded funds that buy gold bars on behalf of their investors was flat, according to the report. 报告显示,交易所交易基金(ETF)的黄金需求与去年同期持平。 #39;When you have two out of the three pillars of gold demand wobbling, then you can have potential problems#39; in the form of lower prices, said Jon Nadler, senior analyst with at Montreal bullion dealer Kitco Metals Inc. 位于蒙特利尔的金银交易商Kitco Metals Inc.的高级分析师纳德勒(Jon Nadler)说,当撑黄金需求的三根柱有两根已经摇摇欲坠时,你可能要遇到价格下跌的潜在问题了。 Gold futures for August delivery gained .40, or 0.8%, to settle at ,616.10 a troy ounce on the Comex division of the New York Mercantile Exchange. Gold prices are up 3.2% on the year, but off 14.4% from a record ,888.70 hit Aug. 22, 2011. 纽约商品交易所Comex分部8月交割的黄金期货合约涨12.40美元,至每盎司1,616.10美元,涨幅为0.8%。黄金价格8月同比上涨3.2%,但较2011年8月22日的1,888.70美元的历史最高水平下跌了14.4%。 Excluding central banks and industrial users, gold demand was down 13% to 721.1 tons. Central banks continued their bullion buying spree as they diversify their reserves away from dollars and euros, purchasing 157.5 tons in the second quarter, a record. 剔除央行和工业使用者的需求后,全球黄金需求下降了13%,至721.1吨。为了减少美元和欧元储备、使储备多样化,全球央行仍然在大举购买黄金,第二季度的购买量创下157.5吨的历史新高。 India recaptured the crown as the world#39;s top consumer in the second quarter, after losing out to China for two consecutive quarters. However, India#39;s consumer demand for gold, a metric that combines sales of jewelry, coins, and bars, is down 38% to 181.3 metric tons. 二季度印度重新夺回了世界第一大黄金消费国的地位,此前两个季度,印度的黄金需求皆落后于中国。不过,印度消费者的黄金需求下降了38%,至181.3吨。消费者的黄金需求包括珠宝、金币和金条的销量。 The decline was attributed to the persistently weak rupee, which has kept gold in rupee terms near record highs despite declines in global gold prices. 卢比的持续疲软导致印度消费者黄金需求的下降。尽管全球金价下跌,但卢比的疲弱导致以卢比计价的黄金价格保持在接近历史高点的水平。 #39;India will continue to be out of the market for a while,#39; said George Gero, senior vice president with R Wealth Management. He said the dry monsoon season has cut into farmers incomes, leaving many buyers with little disposable income. 加拿大皇家财富管理公司(R Wealth Management)高级副总裁格罗(George Gero)说,印度消费者对黄金的需求将继续保持低迷状态。他说,干旱的季风季令农民收入减少,许多买家可配收入都微乎其微。 There were bright spots in the demand data. Excluding India and China, global retail investment demand for gold, mostly from Europe, actually rose 16% to 195.2 metric tons. 黄金需求数据中也不乏亮点。除印度和中国外,全球黄金零售投资需求上升了16%,达到195.2吨,其中大多数来自欧洲。 /201208/195700成都到哪里去看牙比较好德阳市妇幼保健院烤瓷牙好不好

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