这些塔会升出水面并且亮灯，用以警示船只避让，同时也能够完全升到水面以上，以方便维修螺旋桨和清理叶片上的水草。
The towers will stick out of the water and be lit, to warn shipping, and also be designed to be lifted out of the water for maintenance and to clean seaweed from the blades.
如果我在修灯的时候受伤了，即使是在办公时间，我也不会从公司那里获得赔偿，因为维修不是我的责任。
If I got hurt when fixing the light, even during office hours, I wouldn't get compensation from our company since repairing is not my responsibility.
介绍了医用YAG激光机的维修经验。着重叙述了氪灯电路的修理和光路的调整。
This article introduces experience in medical YAG laser service. Places stress on krypton lamp current repair and light channel adjustment.
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