engine hold-down bolt 引擎压紧螺栓
hold-down bolt 压紧螺栓底脚螺栓 ; 压紧螺栓
differential hold-down bolt 差速器压紧螺栓
fuel injector hold-down bolt 喷油器压板螺栓
injector hold-down bolt 喷油器固定螺栓
explosive hold-down bolt 爆发压紧螺栓
bolt hold down cap 螺栓压紧式泡罩
filter adapter hold-down bolt torque 滤清器接盘螺栓拧紧扭矩
bolt hold-down bracket 机心定位架
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