两端气体推动的样品管 dual gas-driven sample tube
它主要由一钢制长方体和固定在其两端的两个相同直径的钢制圆柱体组成。
It is mainly composed of a steel rectangular parallelepiped and two steel cylinders of the same diameter fixed at its two ends.
本文在分析其中的每个方面时，将提供倾向于粒度连续体两端的总体指南。
As you examine each aspect here, you get general guidance as to the tendencies toward each end of the granularity continuum.
她注意到，在该动物的染色体两端是一个重复的DNA序列，这个序列用字母表示就是CCCCAA。
She noticed that at the end of each of the creature's chromosomes was a repeating sequence of DNA, spelt out by the letters CCCCAA.
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