Cant wiped off by alcohol, clear font, long useful life.
防酒精擦式,字体清晰不掉落,使用寿命长。
Can't wiped off by alcohol, clear font, long useful life.
防酒精擦式,字体清晰不掉落,使用寿命长。
With this structure, the laser stripe (12) is free from strains, and the semiconductor laser device offers a long useful life.
使用这样的结构时,激光条(12)中没有应变,半导体激光器件具有长的使用寿命。
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