laser head的用法和樣例：
例句
- Connect the plug of laser head firmly with its power supply.
請將激光頭上的插頭與電源緊密連接。 - Balloon, drill, and laser are all attached to a catheter inserted through a small incision in the arm or groin and snaked through an artery to the blockage.
氣囊，鑽頭，激光頭都裝在一個導管上通個手臂或腹股溝的一個小的穿刺孔穿過動脈達到阻塞部位。
