It's an ancient artefact, probably made by the other alien race.这是很古老的艺术品, 可能是外星人制造的.Had we taken the artefact, there would have been no need to return.如果我们真的偷了试金石, 我们根本没必要再回来.Tommy DeVito : what do you mean, you ar...
间苯二酚和 2- 硝基二苯胺可用作安定剂.Resorcinol and 2 - nitrodiphenylamine may be used as stabilizers.研究了含二苯胺硝化棉的生物降解特性.Biodegradability of the nitrocellulose with diphenylamine was investigated in this paper.本文主要用分光光度法研究[Ir ( NO ) Cl_5...