激光器连续出光，会不会很热，需要加个风扇吗，眼睛直视激光会不会对眼睛有伤害
接线正确的情况下，适度发热是正常的，无需加风扇；眼睛不要直视激光，可以佩戴护目镜操作
If connection is correct, moderate heating is normal, no fan is required; do not look directly at the laser with your eyes, you needto wear goggles to operate
If connection is correct, moderate heating is normal, no fan is required; do not look directly at the laser with your eyes, you needto wear goggles to operate