圆规盘内侧壁设计了直径片转动槽，直径片分两片组装进入转动槽，直径片上设计有滑动阀与转动柄，从而达到精确划圆的目的。

Said diameter plate composed of two pieces is installed in the slot on inner side of compasses' disk. The slide valve and turning handle are on the diameter plate for drawing circle precisely.

youdao

多功能工具(12)设有第一和第二手柄(20,22)，工具头(64)及转动钳口件(66,68)，还有许多附加工具。

A multiple function tool (12) having first and second handles (20, 22), a tool head (64) with pivotal jaw members (66, 68), and a plurality of additional tools.

youdao

旋开移相器上“西科”牌（？）装置一端的止动柄，即可转动止动柄而调整移相器。

Unscrew the locking handle found on the side of the phase shift 'Siko'unit; this enables the adjusting handle to be turned.

youdao