如果不想从室内看到街景，可以使用不透明玻璃。You can always use opaque glass if you need to block a street view.在疾病后期,不透明的角膜可能产生溃疡,甚至穿孔.In advanced stages the opaque corneas may ulcerate and even perforate.这个方法既适用于不透明物体,又适用于透明物体.The method app...
传送带下沉重的钢滚筒the heavy steel rollers under the conveyor belt这个大齿轮带动小齿轮使滚筒旋转.This large gear turns the small one to rotate the cylinder.粉碎辊是波纹式滚筒, 还常是螺旋割纹式.These rolls are corrugated cylinders, usually of the spiral type....
He emerged from the dark recesses of the garage.他从车库的暗处走出来。From the recesses of his coat Richard produced a bottle of champagne.理查德从大衣里面掏出了一瓶香槟。I could see the inmost recesses.我能看见最深处....
他让一束电火花穿过了一团混合气体。He passed an electric spark through a mixture of gases.开发新一代高品质电火花成形机.The development of a new generation of high - quality electric spark forming machines.此外, 还有焊接 、 电火花加工 、 激光加工等.In addition, there are...