钢网制作技术包括化学腐蚀, 激光切割和电铸.Stencil manufacturing techniques include chemical etching, laser cutting and electroforming.电铸镍锰合金因其特殊的性能而具有重要的应用前景.The electroformed Ni - Mn alloys hold good prospects for its specific performance....
It was Karl Marx who said, "Religion is the opiate of the people".卡尔·马克思曾说，“宗教是人民的精神鸦片。”Work no longer could be an opiate anesthetizing him against his feelings and convictions.他再也不用把工作当成麻醉自己情感与意愿的鸦片了.He cannot sleep, no...
One of the outstanding prerequisites of any city is a local transportation system.本地运输系统是任何城市的突出前提条件之一.The advanced courses have prerequisites which you may not have had.高级的课程要求一些条件,你可能不具备吧?However, you will know the pre...