The threading model for device project is free by default .

设备项目的线程模型在默认情况下是释放的。

Scientific and rational design makes threading more quickly and accurately .

科学合理的设计使穿线更加快速准确。

Tools for tapping or threading nmb .

攻螺纹或车螺纹工具。

I always find threading a needle difficult .

我总觉得穿针很难。

When threading or guiding the vent line under the intake distributor , it is helpful to have a second person to assist .

在引导通风管穿过进气分配器下方时，请另一人提供协助有助于完成这项工作。