炭黑是不透明的,可以防止辐射热传到推进剂内部.Carbon black is an opacifier which prevents radiant energy transmission to the interior of the propellant.研究了纳米炭黑水泥砂浆的导电性和电热特性.Research of the nano carbon black cement mortar electrical and electro...
I picked first all the people who usually were left till last.我先挑出了所有通常留到最后的人。The brothers usually roll into their studio around midday.兄弟几个总是要到正午前后才姗姗来到工作室。They ate, as they usually did, in the kitchen.像平常一样，他们是在厨房吃的饭。...
当我在家观看电视剧时,喜欢吃爆米花.I like to eat popcorn when I am watching TV play at home.他仍站在收银机后，嘴里塞满了爆米花。He still stood behind his cash register stuffing his mouth with popcorn.别像猪那样贪吃 ― ―让我们吃点爆米花吧.Don't be a pig -- let us have...