two-flight screw的意思|示意
美 / /
英 / /
双飞”螺丝
two-flight screw的网络常见释义
双螺纹螺杆 ... two-flank gear rolling tester ==> 双面啮合检查仪 two-flight screw ==> 双螺纹螺杆 two-flow condenser ==> 双流程冷凝器 ...