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Terms for subject Aviation containing 形螺纹 | all forms | in specified order only
ChineseEnglish
国家标准锥形管螺纹national taper pipe thread
国家航空锥形管螺纹aeronautic national taper pipe threads
形螺纹trapezoid thread
英制形螺纹acme screw thread
爱克米梯形螺纹Acme screw thread