... main scantling 首要构件尺寸 main screw 主螺旋桨 main sea level 公海海面 ...
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main screw cap 主螺帽子
main valve head cap screw 主阀盖有头螺钉
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To be suitable for disassembling the steering wheels of different vehicle types, an adjustable spacing connection is designed between the main screw and the drawing bolts.
为适应拆卸不同车型的方向盘，所述主丝杠与拉拔螺栓之间设计为可调间距连接。
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