短語詞組短語extension of base field screw 螺旋延長部base screw bolt 底座螺栓base speed adjusting screw 基本速度調(diào)節(jié)螺釘screw base screw 螺釘座Screw base 螺口燈頭;螺旋插頭;[電]螺絲燈座;愛迪生燈座screw base lamp holder 螺口燈座screw base fuse 螺旋式熔斷器three -screw base 三腳基座;三螺旋基座screw base receptacle 螺口插座燈座 返回 base screw