化合物庚烷的主要用途是作为双基推进剂的增塑剂.The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.正庚烷异构化的难点在于高选择性地生成多侧链异庚烷和抑制异庚烷的裂化反应.However, it is difficult to produce multi branched i heptane and re...
角落里有一道梯子,通往上面敞开的活板门.In one corner a ladder went up to an open trap door.这位女主妇砰的一声关上活板门.The woman shut the trapdoor with a slam.赫敏·格兰杰: 它站在一扇活板门上.Hermione Granger: It was standing on a trap door....
From my place of ambush, I could hear him pant aloud as he struck the blows.我从藏身的地方可以听到他捅刀子时的喘息声.Our soldiers lay in ambush in the jungle for the enemy.我方战士埋伏在丛林中等待敌人.LONDON, March 26: Each battered high - rise becomes a...
...a scheme to lock up persistent juvenile offenders.将青少年惯犯关入监狱的计划The courts are becoming more severe on young offenders.法庭对青少年犯罪者的处罚趋于严厉。Severe penalties were meted out to the offenders.违例者受到了严惩.Prison is not the answer...
He was only a little old man and broken.他已经变成了小老头儿,而且很衰弱了.Francesca blushed only a little.弗朗西丝卡只微微红了一下脸.He was quiet , reasonable , and only a little tense.他言语冷静,有理有据, 但稍有点紧张....