Yet a couple of centuries later, Copernican advocates seemed harmless.但几个世纪后, 哥白尼的拥护者显然不会受到伤害.The authority for this new Copernican revolution derives, as of the old, from hard scientific evidence.这次新的哥白尼式的解放, 其真实性依旧来自于确...
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...