密封钨丝和钨条表面裂纹的试验方法 standard test method for surface flaws in tungsten seal rod and wire
坏试验方法 test method for insulators :mechanical test methodss
试验方法 astm methods of test; experimental method; experimental procedure; test approach; test method for pv limit of plastics bearings; test mode; test procedure; testing method; testing procedure
线试验方法 jute yarns and threadsmethods of testingng; jute yarns and threads--methods of testing
氨熏试验方法 wrought copper and copper alloys-detection of residual stress-ammonia test