Millson regarded her thoughtfully. Perhaps she was right.米尔森若有所思地注视着她。或许她是对的。Millson saw the workman, Terry, descending the ladder.米尔森看见工人特里正从梯子上下来。Millson's face wore a satisfied expression.米尔森一脸的心满意足。...
阴极保护, 磷化反应, 酸洗和电镀都会造成氢脆变.Processes which can lead to cathodic protection, phosphating, pickling, and electroplating.热熔胶耐老化和脆变的质量问题是胶订过程中亟待解决和掌握的.Hotmelts anti - aging and embrittlement of quality problem is in the proces...