一般说来，如此超薄得振动膜应该是透明的，可允许激光束穿过。
Normally a diaphragm so thin would be transparent, allowing the laser's light to escape.
司机的出生日期和签名以激光雕刻的方式使其凸显可触。
The driver’s date of birth and signature are embossed by laser engraving to make them sensitive to touch.
司机的出生日期和签名以激光雕刻的方式使其凸显可触。
The driver's date of birth and signature are embossed by laser engraving to make them sensitive to touch.
应用推荐