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，鉆頭，激光頭都裝在一個(gè)導管上通個(gè)手臂或腹股溝的一個(gè)小的穿刺孔穿過(guò)動(dòng)脈達到阻塞部位。
