手持激光：水路的安装（中英）

水管及气管接口可安装外径6MM内径4MM的软管。中间为气路进，两边为水路的进出管路（不分进出方向），如下图所示：

Hose with an outer diameter of 6MM and an inner diameter of 4MM can be installed on the water pipe and gas pipe interface. The middle is the gas route, and the two sides are the inlet and outlet pipes of the water (regardless of the inlet and outlet direction), as shown in the following figure:

  冷却系统分焊接头的水路部分和光纤头的水路部分，两者串联，如下图所示：

The cooling system is divided into the waterway part of the welding head and the waterway part of the optical fiber head, which are connected in series, as shown in the following figure: