Wear may sometimes be detected by using a small pry bar under the joint.
有时，在接头处用一个小杠杆就能检测出耐用性。
Stress corrosion in flash welding butt joint of steel bar HRB400 is studied.
针对HRB400钢筋闪光对焊接头的应力腐蚀过程进行研究。
Stress corrosion in flash welding butt joint of steel bar HRB400 is studied.
针对HRB400钢筋闪光对焊接头的应力腐蚀过程进行研究。
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