For surfacing welding on cold die and cutting tool.冷冲模及切削刀具的堆焊.The Research of the Microstructure of the Co - Cr - W Alloy Plasma Surfacing.Co -Cr-W 系等离子弧堆焊合金层显微结构的研究.To protective material used in surfacing and finishin...
A broader therapeutic trial that inoles a year of low - dose chloroquine treatment get under way soon.更广泛的治疗性实验—利用低剂量氯喹治疗1年将尽快开始实施.Because of the delay, the ship did not get under way until midnight.因耽搁, 船到午夜才出海....