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Terms for subject Mechanic engineering containing | all forms
ChineseEnglish
标准美制直管螺纹American Standard straight pipe thread (national pipe straight thread)
标准美制管螺纹national standard pipe taper thread
标准直管内螺纹American Standard internal straight pipe threads
标准粗螺纹national coarse thread
标准细螺纹national fine thread
牙形national form