水的纯度定期受到检测。
水的纯度定期检测。
那里有一个高纯度锌的柱子，屹立了一段时间。
There is a pillar there of high purity zinc that stood for the duration.
除了粮食产量之外，还有许多不同的方法来衡量农业表现：能源使用、环境成本、水的纯度、碳足迹和生物多样性。
There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity.
事实上，一个多世纪以来，纽约的市政用水一直被称为自来水中的香槟，它最近被认为是世界上口感和纯度最好的水之一。
In fact, New Yorks municipal water for more than a century was called the champagne of tap water and until recently considered among the best in the world in terms of both taste and purity.
采用纯度为98%的正21烷（C21H44）作为相变材料（PCM）。
The 98% pure Heneicosane(C21H44) was used as the phase change material(PCM).
估定矿物质的纯度就常常用这种办法。
The purity of minerals is often assessed in this way, as are things like the amount of fat in milk or salt in water.
达到技术纯度要求的铝锭。
到现在差不多一千年了，还是保持在高纯度。
微生物发酵剂在质量和纯度方面通常差异很大。
Microbial starter cultures vary widely in quality and purity.
加拿大同意放弃相当数量的高纯度浓缩铀。
Canada agreed to give up a significant quantity of highly enriched uranium.
200克70%纯度的黑巧克力，敲成小块。
200g (7oz) Fairtrade 70 per cent dark chocolate, broken into small pieces.
这项计划就是利用激光的纯度选择性地激发铀的罕见形态。
The plan was to exploit the extraordinary purity of laser light to selectively excite uranium's rare form.
反应堆的储备箱里储备了与反应堆内同等纯度和化学构成的水。
The reserve tanks at a reactor contain the same grade of water in terms of purity and chemical composition that are normally used in the core.
大部分的食用色素必须在使用规范和纯度上符合一定的法律标准。
Most food colours must meet certain legal criteria for specifications and purity.
合成很长的烷烃并不轻松，尤其是达到实验所需要的数量和纯度。
Synthesizing very long alkanes is not trivial, especially in the quantities and purities required to put these simulations to the test.
窖藏中所发现的金子纯度在75%左右，而重量更在11磅上下。
Gold, weighing in at more than 11 pounds, accounts for nearly 75 percent of the metal in the hoard.
光在光纤中损耗不是光纤制造技艺的责任，而是光纤的成分——玻璃纯度不够。
It was not the manufacturing of the fiber that was at fault, but rather that the ingredient for the fiber - the glass - was not pure enough.
美国食品与药物管理局规范了所有的婴儿配方奶粉，以确保它们的纯度和营养含量达标。
The U.S. Food and Drug Administration regulates all baby formulas to ensure purity and that they meet nutritional requirements.
勘测表明它包括至少240百万吨纯度2.3%的铜，这将使其成为一座世界级的铜矿。
Surveys suggest that it consists of at least 240m tonnes at a purity of 2.3%, which would make it a world-class deposit.
现在对这个信息唯一合理的意义是我花太多的时间看这些节目，然后缺少纯度和完整性。
Now the only reasonable meaning that can be attached to this information is that I spent way too many hours watching shows that lacked both in purity and integrity.
据科曼和西林萨克斯说，是因为“高纯度的肉毒毒素是目前科学已知的最致命的毒素”。
Rather, it is the fact that botulinum neurotoxin, in its pure form, is "the deadliest substance known to science," according to Coleman and Zilinskas.
一直以来，诺卡尔都在不断争取更大的回收量，同时也致力于提高其废物加工成品的纯度。
Norcal is constantly striving to recycle more, and to improve the purity of the processed waste it produces.
在火星上存在冰这并不足以令人惊讶，令人惊讶的是冰的纯度之高和埋藏冰原的范围之广。
The presence of ice on Mars is not a surprise, although the purity and extent of the buried ice sheets is.
Ajax的纯度并不重要：只有少数人知道Google地图不是纯粹的Ajax应用程序。
Ajax purity is not important: Few realize that Google Maps is not purely an Ajax application.
这是一种世纪工业，由世界最古老的食品法——1516 年《德国啤酒纯度法》指导的工业。
This is a centuries-old industry, governed by the world’s oldest food law, the 1516 Reinheitsgebot (purity law).
它的核弹头使用爆炸设计有一个由约15 - 10千克高纯度浓缩铀组成的实核。
Its nuclear warheads use an implosion design with a solid core of about 15-20 kilograms of highly enriched uranium.
如此反复，实际过程中，可以沿着，共存曲线蒸馏很久，然后提纯到一个很高的纯度。
So then, in a practical way, it's possible to walk quite far along the distillation, the coexistence curve, and distill to really a high degree of purification.
通过联系，他得到的是未加工的DCA，然后找化学专业的朋友为DCA进行中和并检查其纯度。
Using his contacts he obtained raw DCA, then asked a chemist friend to buffer it and check its purity.
通过联系，他得到的是未加工的DCA，然后找化学专业的朋友为DCA进行中和并检查其纯度。
Using his contacts he obtained raw DCA, then asked a chemist friend to buffer it and check its purity.
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