采用1,4- 丁二醇 、 马来酸酐及十八醇为主要原料,合成出一种双子表面活性剂1, 4- 丁二醇双琥珀酸十八醇双酯磺酸钠.A new type gemini surfactant was synthesized from 1,4 - butanediol , maleic anhydride and 1 - octadecanol.研究了加入聚对苯二甲酸丁二醇酯(PBT) 对酚醛塑料的增韧改性.A phenolic resin was ...
A great chunk of loose kerbing smashed into my left-front wheel, bursting the tyre and denting the rim...我车子的左前轮撞在一大块松动的路缘石上，导致车胎爆裂、轮辋凹陷。Other than blowing up a tyre I hadn't done any car maintenance.除了给轮胎充气外，我没做过任何...
Gunner had been born and raised in Vallejo, California, home of Mare Island Naval Shipyard.刚纳生长在加利福尼亚州瓦列霍市, 那里正是母马岛海军造船厂的所在.They'd been a dejected lot when he'd arrived at the shipyard, but now they sparkled wi...
他说根据这些法规，赖斯先生的资产可能已经被冻结了。Under these laws, he said, Mr. Rice's assets could have been frozen.他根据被俘囚犯提供的证据得出了这个结论。He based his conclusions on the evidence given by the captured prisoners.根据对经济的预测来预言选举的走势不大可靠。Predicti...