Pick up drill stem test tool.

提起钻柱测试工具。

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DST (drill Stem test), a fast test for show of oil and gas while drilling.

即中途测试，是指油井在钻井过程中，对有。

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Drill stem test plays an important role in drilling operation. It is easy to fail or to cause complicated down hole situations if conducted improperly.

中途测试在钻井施工中具有重要的作用，如果测试措施不到位，容易导致测试失败或发生钻井复杂情况。

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The other pathway that I think is very promising is now to use stem cell generated cells in culture dishes to use them for high throughput drug screening now we can test thousands of different drugs without killing so many animals.

第二个目标的前景相当广阔,我们可以用干细胞,在培养皿中大量繁殖各种细胞,用于大剂量的药物试验,让你无需屠戮动物,就能进行各种药物试验。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

They could be used to build an artificial artery in a test tube or the stem cells could be injected straight into the heart and they could form within it.

FORBES: Why Medical Treatment is Going to Get Much Cheaper

Dr Reynolds, and others, have shown that under the influence of suitable growth factors, stem cells can lead full lives in a test tube.

ECONOMIST: Something new in mind

The way to test whether a particular cell is a stem cell, therefore, is to grow it individually.

ECONOMIST: Stem cells