It was important to the study of laser device.
对于激光器的研究具有重要意义。
The invention discloses a dichroic laser scanning type medical purpose vein display device.
本发明公开了一种双色激光扫描式医用静脉显示装置。
The touching control pen includes a pen body, a laser-pointing device and a switch.
此种触控笔包含一笔身、一激光指向器及一开关。
The touching control pen includes a pen body, a laser-pointing device and a switch.
此种触控笔包含一笔身、一激光指向器及一开关。
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