With water as urea solvent and an organic chlorine compound as activator, the adducts formed into small spheres which are easily filterable.

用尿素饱和水溶液，有机氯化物为活化剂，生成的尿素-正烷烃络合物成球状，易于过滤分离。

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PCB (polychlorinated biphenyl) : Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound.

多氯联苯：任何一种由氯与联苯反应生成的非常稳定的二环有机化合物。

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When heating up a chlorine compound with other Martian soils, Curiosity discovered that the compound reacted with carbon to form a simple organic.

FORBES: Curiosity Finds Hint Of Carbon On Mars