The dynamic SIF variation was found to lag behind the stress - pulse imingement by several microseconds.动态应力强度因子的变化发现滞后于应力脉冲冲击几微秒.The dynamic SIF variation was found to lag behind the stress - pulse impingement by severa...
Defensive quills dot the backs of these troublesome creatures.防御性的刺长在这些讨人厌的生物背上.Quills were the chief writing implement from the 6th century AD until the advent of steel pens in the mid 19th century.从公元6世纪到19世纪中期钢笔出现以前,羽...
非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.非离子型表面活性剂有聚氧乙烯缩合物, 糖酯和烷基胺氧化物.Nonionic surface - active agents include polyoxyethylene condensates, sucrose e...