Projector may occur various malfunction when in use. Judging the cause of its occurrence according to the breakdown phenomenon we can solve the problem in time and increase its efficiency.
投影机在使用过程中，会出现各种各样的故障，可根据故障现象判断其发生的原因，从而及时解决问题，提高使用效率。
Projector may occur various malfunction when in use. Judging the cause of its occurrence according to the breakdown phenomenon we can solve the problem in time and increase its efficiency.
投影机在使用过程中，会出现各种各样的故障，可根据故障现象判断其发生的原因，从而及时解决问题，提高使用效率。
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