Alkyl indicant is a new non-ionic surface active agent.
烷基糖苷是一类新型的非离子面活性剂。
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Vitiated airs, deflogisticated marine acids, phloxes, calxes, terequeous exhalations, phloxes, calxes, terqueous exhalations, and, above all, phlogiston, the substance that was thought to be the active agent in combustion.
Vitiated airs, deflogisticated marine acids, 最重要的燃素, 一种被认为
燃烧活性剂的物质。