Tungsten is widely used in multi - level interconnection due to its excellent gap filling and anti - electromigration capability.钨由于其优良的抗电迁徙性能和宜加工特性而被广泛应用于多层金属互连技术中.Electromigration dispersion ( EMD ) is one of major eff...
Objective : To investigate the feasibility, safety and cancer clearance of laparoscopic distal gastrectomy with D 2 lymphadenectomy.目的: 比较腹腔镜辅助下远端胃癌根治及D2淋巴结清扫术的手术方法、可行性及安全性....
These thumps are replaced by thrills when valvular insufficiencies or stenoses or congenital defects are present.这些撞击在瓣膜闭锁不全或狭窄,或者有先天性缺损时被震颤所代替.Then from our country insurance investment situation, it points out some ins...
The filter crucible become slim in the coned flande and dewater.滤饼在锥兰中逐渐变薄,得到进一步脱水.Spring loaded coned pins shall be used for two - way and four - way datum holes and slots.配有弹簧的锥形销被使用为 双向 和四向方式的基准孔和槽孔....