Freud postulated that we all have a death instinct as well as a life instinct.弗洛伊德曾假定我们所有人都有生存本能和死亡本能。He postulated that the carbon reacts initially with the sulfate to form calc ium sulfide.他认为碳最初和硫酸钙反应生成硫化钙.They postul...
表面淬火 或渗碳法应用十分广泛.The case - hardening or carburizing process is in wide use.在飞机制造中,渗碳法比其它方法用得更普遍.Casehardening is used more than the other methods in aircraft work.恰当的渗碳扩散与预冷保温是提高疲劳寿命的有效措施.Appropriate carbon - diffusion a...
他们中很多人特别赞扬了影片精炼的对白。Many of them made a point of praising the film's pithy dialogue.王建民用最新精炼的滑球三振12名打者.Chien - Ming Wang strikes out 12 a newly refined slider.电热连续结晶机是实现粗锡脱铅精炼的关键设备.The electric - heating continuous c...