偷猎大象活动数量已经降至极低水平。
例如，所谓的蛇形土壤缺乏钙，只有对低水平的这种矿物质耐受的植物才能生存。
So-called serpentine soils, for example, are deficient in calcium, and only plants able to tolerate low levels of this mineral can survive.
这些现代欧亚混血儿的早期祖先分散到世界各地，那里有更多的季节性日照和更低水平的太阳辐射。
These early ancestors of modern Eurasians disperse into parts of the world that had more seasonal sunshine and much lower levels of sun radiation.
低水平的游离是至关重要的，因为这个过程提供了一种新基因的来源和一种机制，通过这种机制，如果该地鱼群消失，可以重新繁殖该种群。
Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be repopulated should the fish there disappear.
我们几年来的确保持最低水平的通货膨胀。
英镑对美元的比价降到了有记录以来最低水平。
The pound has sunk to its lowest recorded level against the dollar.
低水平的刀耕火种不会损害雨林。
威尔士已经推行了特殊的低速限制以把污染降低到最低水平。
Wales has introduced special low speed limits to minimize pollution.
2016年的阅读成绩是1972年以来的最低水平，这或许并非偶然。
Perhaps not accidentally, in 2016 reading scores were the lowest they have ever been since 1972.
2月份，加拿大和美国的失业率分别为3.5%和5.5%，达到了几代人以来的最低水平，工人短缺的情况随处可见。
In February, at 3.5 percent and 5.5 percent respectively, unemployment rates in Canada and the United States were at generational lows and worker shortages were everywhere.
美国一直是一个流动性很强的国家，但美国人口普查局的最新数据显示，美国的人口流动率已降至有记录以来的最低水平。
The US has always been a remarkably mobile country, but new data from the Census Bureau indicate that mobility has reached its lowest level in recorded history.
一项最新研究调查显示，新生们已经表现出压力很大了，该研究报告称目前学生的情绪健康水平处于1985年该调查开始以来的最低水平。
Freshmen are showing up already stressed out, according to the latest research study that reported students' emotional health levels at their lowest since the survey started in 1985.
资金管理公司 United Income的数据显示，截至今年2月，65岁及以上人口占劳动力的比例已从1985年1月10%的历史最低水平增至约20%。
About 20% of people 65 and older were in the workforce in February, up from an all-time low of 10% in January 1985, according to money manager United Income.
他解释说，更长的端粒代表了更低水平的炎症。
Longer telomeres indicate low levels of inflammation, he explained.
这允许了中央银行把利率维持在历史最低水平。
This has allowed central Banks to hold interest rates at historically low levels.
利率和通胀仍保持较低水平。
And both interest rates and inflation remain comfortably low.
例如，在美国风疹病例数达到最低水平。
In the US, for example, the number of cases of rubella has fallen to the lowest level ever.
谷物库存处于1980年以来的最低水平。
这是该指标1986推出以来的最低水平。
请注意，测试自动化并不直接模拟极低水平的用户操作。
Notice that the test automation does not directly simulate user actions at a very low level.
而其国库债券收益维持在接近历史低水平状态。
The yields on American Treasury bonds remain at close to record lows.
对人类的放射剂量如果与自然环境辐射水平相比属低水平。
Radiation doses to humans may be characterized as low-level if they are comparable to natural background levels.
它的收入下降到自2009年初以来的最低水平。
美联储还明确星期二，它打算保持基金利率维持在极低水平。
The Fed also made clear on Tuesday that it intends to keep the funds rate at extremely low levels.
结果是低水平的石油消费和更高效率的汽车的出现。
The result was lower consumption of oil and greater fuel efficiency of the fleet.
美国也未能幸免，我们尚未迎来低水平的美国利率。
The United States is not exempt. Low American interest rates mean bond markets haven't yet turned on us.
分析师和决策者抱怨，利差交易已使日元降到非自然的低水平。
The carry trade, analysts and policymakers complained, had driven the yen to unnaturally low levels.
留些喘息的空间——留出几天缓冲——有助压力保持在低水平。
A little breathing room — with a few days to just kick back — helps keep stress at low levels.
每天你应该吃更多较低水平的食物，少吃较高层次的。
You should eat more servings per day from the lower levels, fewer from the higher ones.
每天你应该吃更多较低水平的食物，少吃较高层次的。
You should eat more servings per day from the lower levels, fewer from the higher ones.
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