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来源:雅诚德英语网
In case of unnecessary condition, don't try to switch from different light sources, elongating effective use life of lamp.
在不必要的情况下,要尽量避免多种光源间的反复切换,以延长灯管的有效使用寿命。
In case of unnecessary condition, don't try to switch from different light sources, elongating effective use life of lamp.
在不必要的情况下,要尽量避免多种光源间的反复切换,以延长灯管的有效使用寿命。