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...
The case - hardening or carburizing process is in wide use.表面淬火 或渗碳法应用十分广泛.Campus environment to achieve the " hardening, green, landscaping, clean up. "校园环境实现了 “ 硬化 、 绿化 、 美化 、 净化 ”.The material with high water is a new...
Despite the vogue for so-called health teas, there is no evidence that they are any healthier...尽管现在流行所谓的健康茶饮，但没有证据证明这些茶更有益健康。Cycling enjoyed a vogue at the end of the nineteenth century.19世纪末骑自行车曾风行一时.the vogue for chil...
Despite his unconventional methods, he has inspired pupils more than anyone else.尽管他的方法不同寻常，但他给予学生的激励比其他人都要多。There may be alternative methods of substantiation other than written records.除书面记录外，可能还有其他方法可以证实。Traditional s...
属于这类物质的有云母 、 瓷器 、 石英 、 玻璃 、 木材等等.To this class of substance belong mica, porcelain, quartz, glass, wood, etc.沥清铀矿和铜铀云母比纯铀的放射性强得多.Pitchblende and chalcolite are much more radioactive than uranium itself.它不能通过云母这样的不透水的物质.I...