A single - ring benzoxazine was synthesized by solvent - free method.用无溶剂法合成了一种单环苯并嗪.Curing shrinkage, temperature and curing enthalpy of benzoxazine based on diphenyl oxide resin were investigated.研究了苯并口恶嗪二苯醚树脂固化时的体积收缩率...
If the bailiff thinks that things could turn nasty he will enlist the help of the police.如果法警认为事情变得不可收拾，他就会寻求警方的帮助。If the bailiff thinks that things could turn nasty he will enlist the help of the police...如果法警认为事情变得不可收拾...
我花大笔钱购置了上班时穿的漂亮新套装。I spent lots of money on smart new outfits for work.警察冲她笑了笑，“这狗真漂亮。”——“哦，谢谢。”The policeman smiled at her. "Pretty dog."— "Oh well, thank you."现在她为顾客定做漂亮的干花插花。She now makes wonderful dried flower arrang...
Marge played a mean game of tennis.玛吉打得一手好网球。Jeff Sr . and Marge thanked me, but I was the grateful one.老 杰弗 和玛吉感谢我, 倒是我要向他们感恩才是.He was still, not wanting to make any noise that might cause Marge to wonder.他端坐在那里一动不动, 不愿...
添加的甲基汞的回收率据报到达90%左右.The recovery of added methylmercury was reported to be approximately 90 %.烯酮, 特别是二甲基烯酮, 很容易齐聚和聚合.Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization.六亚甲基二异氰酸酯 ( HMDI )...