半导体激光打标机电光转换效率高，体积小，功耗低，使用费用低廉；
Semiconductor laser marking Electrical and optical conversion efficiency, compact, low power consumption, using low-cost;
半导体激光打标机电光转换效率高，体积小，功耗低，使用费用低廉；
Semiconductor laser marking Electrical and optical conversion efficiency, compact, low power consumption, using low-cost;
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