地球化学标准元素 geochemical leading elements
地球化学标准 geochemical criterion
地球化学标准样 geochemical standard sample
分析化学标准 AOAC
国际物理化学标准局 International Bureau for Physico-Chemical Standards
英国药典化学标准物 British Pharmacopoeia Chemical Reference Substances
化学标准品 CRS
化学标准样品 chemical reference materials
德国标准化学会 DIN ; Deutsches Institut fur Normung ; ISO
生物化学污染标准 [环境] biochemical pollution criteria
对于热固性树脂，单单有化学标准是不够的，必需建立它们的固化指标。
For thermosets, it is not enough for us to have only chemical criterion and we must upbuild the cure index.
他们在寻找人与人之间化学标准组件串联的微小的差别，而正是这些化学标准组件串联起来构成每一个基因。
They looked for tiny differences between people in the series of chemical building blocks that make up each gene.
化学实验室里标准大小的核磁共振机和一个文件柜差不多，但新做成的这微型核磁共振机和一个咖啡杯差不多大。
A standard chemistry lab's NMR machine approaches the size of a file cabinet, but the new device is only about as big as a coffee cup.
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