查询词典 xylylene
- 与 xylylene 相关的网络例句 [注：此内容来源于网络，仅供参考]
-
The dual-site phase-transfer catalyst, 1,4-bisbenzene dibromide, was synthesized in toluene solution at 70℃ from p-xylylene dibromide and tributylamine.
双活性基相间转移触媒是由二溴对二甲苯与三丁胺以甲苯为溶剂在70℃下反应生成溴化1，4-二苯。
-
The results show that, the static interfacial polymerization was conducted in organic phase. The optimized conditions for NF membrane preparation were obtained: the concentration of PDMAEMA was 2%, the concentration of p-xylylene dichloride was 1 ~ 1.5%, NaHCO_3 can be used to maintain alkalescence, The polymerization can be carried out at room temperature and the reaction time was 5 hour.
研究结果如下：此界面聚合反应在有机相中进行；较优的制备条件为：PDMAEMA浓度为2%，对二氯苄浓度为1～1.5%，应加入少量的NaHCO_3来维持溶液的微碱性，室温下反应即可进行，反应时间为5小时。
- 推荐网络例句
-
It seems likely that Kraft will return with a better offer.
看起来卡夫要重新考虑一个更好的出价了。
-
But he'd rather burn off my feelers and watch me squirm.
可他却放任那个家伙对我为所欲为！
-
He consistance of the population dissociation coefficient method andthe sample dissociation coefficient method for the calculation of structural reliabilityin solid rocket motors was reviewed.
依据结构强度－工作应力理论模型，应用数理统计方法和对某团体发动机大量试验数据的实例计算，证明了总体变异系数法和样本变异系数法在结构可靠性计算中的一致性。