该想法并不是认为这些结构单元只是搭乘陨石的乘客，而是小行星和彗星中的化学成分实际上可以制造生物的结构单元。

The idea isn't that these building blocks are just passengers aboard meteorites, but that the chemistry inside asteroids and comets can actually manufacture the essential building blocks of biology.

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以聚乙烯吡啶的化学反应制备了含正负离子对结构单元的两性聚合物CAPVP。

In this paper the chemical reaction of poly (vinyl pyridine) was studied and the polyelectrolytes CAPVP containing zwitterion structure units were synthesized.

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蔗渣磨木木素在隋性气体氛围下，热化学裂解形成大量含苯环的木素基本结构单元衍生物，部分进一步降解成小分子化合物。

The result indicated that MWL was degraded to lots of basic structure unit ramifications contained phenyl of lignin, some of which were decomposed to compound of small molecular weight.

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