以邻苯二胺和糠醛为原料,以十六甲基三烷基溴化铵(CTMAB)为催化剂合成了麦穗宁. The fuberidazole was prepared by reaction of O - phenylenediamine with furfural at the presence of CTMABas catalyst.
本文着重探讨分段供电对阴极电泳漆膜外观质量的影响.Abstract The influence of grade power supply on CED paintappearance quality has been studied.另外,结果还显示,残余气体的原子序数及原子质量越大的残余气体, 对阴极的破坏性就越强.Results showed that larger the atomicity of gas, larger des...
Pezzo crosses the line with arms up celebrating victory.佩佐冲线,双臂高举庆祝胜利.Pezzo takes tight turn downhill as spectators line the side of track.佩佐下山急转弯,观众站在赛道旁观看.In the women's world cup mountain Bikes, 14000 spectators ...
钻石切割靠的是工匠的技艺。The cut of a diamond depends on the skill of its craftsman.有人偷了某个影星的钻石了吗?Has somebody helped himself to some film star's diamonds?他们被满橱窗陈列的钻石和皮草弄得眼花缭乱。They were dazed by window displays dripping with di...