N a turn in which the heel of one ski is stemmed and the other ski is brought parallel 半犁式转弯 (Also called stem) [skiing]
Screw while having dry absorption capacity, but it must be to prevent the stem turn, so as not to scratch the surface of the work.
螺杆泵虽然具有干吸能力，但是必须防止干转，以免擦伤工作表面。
Scientists are using a new stem cell technique allowing them to turn skin from patients into small pieces of brain.
科学家使用一种新的干细胞技术，使他们可以将病人的皮肤转变为小块的大脑。
They are a special risk with stem cells precisely because such cells can turn into any other sort.
对干细胞来说他们是一种特殊的风险，因为这种细胞能分化成任何其他种类。
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