collets

1. 1.

   A band, flange, ferrule, or collar, designed to grip and hold a tool or a workpiece under proper control, and usually to release it under control thereafter; such a collet usually is made of a hard, springy material, especially a metal.

   用于夹持工具或工件并受控释放的带状、凸缘、套圈或环状部件,通常由硬质弹性材料(尤其是金属)制成。

2. 2.

   The rim (of a ring) within which a jewel is set.

   (戒指)镶嵌宝石的镶口。

3. 3.

   In an embryonic plant, the transition zone between the root and the hypocotyl (not clearly distinguishable in most plants.)

   植物胚中根与下胚轴之间的过渡区(在大多数植物中不易明显区分)。

(戒指)镶嵌宝石的镶口。；植物胚中根与下胚轴之间的过渡区(在大多数植物中不易明显区分)。；宝石座；筒夹；套爪

Connections

Learner notes