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1·A novel drill tool threaded connection stress relief groove is proposed in the paper.

减少连接螺纹弯曲应力可以延长钻具连接螺纹的疲劳寿命。

2·Slide one half of the splash guard into the groove on the relief valve body.

将防溅保护的一半滑动到安全阀阀体的沟槽上。

3·The cell further includes a pressure relief vent having a reduced thickness groove formed in the end wall of the container.

该电池还进一步包括具有形成于容器端壁内的厚度缩减槽的卸压排气孔。

4·A new method of high accuracy to measure the groove depth of rectangular relief gratings by laser diffraction is proposed.

提出一种浮雕矩形光栅刻槽深度的高精度衍射测量方法。