单词	nut collar
释义	nut collar 螺母垫圈
随便看	Unified software development process unified software system unified soil classification system Unified solution unified sotiware development process unified specification unified stacking factor unified standard Unified standard for building drawing unified standards unified standards of building drawing unified state control Unified State Examination unified status authentication Unified sthength theory unified stock unified storage unified strength unified strength criterion unified strength parameters unified strength theories unified strength theory unified-strength-theory unified structure element unified studies