免费网站看av片,性xxx中文视频,久久九九久久,国产精品久久久久影院色,91成人爽a毛片免费网站下载,日韩一级在线播放免费观看,激情婷婷综合

Spectroscope

A beam splitter is one can be a beam of light into two beams of the optical device, optical interferometer intermediate parts. Is usually a stereoscopic optical glass coating and.

關(guān)閉
產(chǎn)品咨詢
客服熱線:400-700-9997

A beam splitter is one can be a beam of light into two beams of the optical device, optical interferometer intermediate parts. Is usually a stereoscopic optical glass coating and.

Scope of application

 

The 1 beam splitter is mainly applicable to the colored stones, zircon, diamond, colorless gemstone except enstatite and no obvious absorption spectrum.

2 Identification applies only to have the typical spectrum of gem.

 

3 marked the typical spectrum of gem, can be used as a diagnostic identification characteristic.

 

Spectroscopes, widely used in large enterprises, financial system, financial companies, credit companies, public security, frontier defense, security, police, customs, ancient calligraphy identification fields.