![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
2 The steeply inclined ore body with stable ore should adopt segmental rock drilling and stage mining; for ore body with poor stability or inclination, segmental rock drilling and segmental mining should be adopted;
The height of the 3 sections shall be determined comprehensively according to the rock drilling depth of the rock drilling equipment and the inclination angle of the ore body;
4 The upper and lower adjacent stages of the same ore body and the ore and pillar arrangement of adjacent parallel ore bodies in the same stage shall have the same specifications, and the upper and lower sides and the front and rear shall correspond to each other;
5 Except for the roadway that is used for mining, transportation, filling and ventilation, other roadways shall not be dug in the top pillar of the stope .
Laser
Laser is divided into the following types according to the wavelength: Red Laser , Orange Laser, Yellow Laser , Green Laser , Cyan Laser, Blue Laser , Violet Laser and UV Laser .
According to pumping source, it can be divided into: DPSS laser, diode laser and Fiber Laser .
DPSS and Diode lasers also can be divided by performance with High Stability Laser, Low Noise Laser , Single Frequency Laser, Long Coherent Laser, High Power Laser , High Energy Laser, Q-switched Laser, Pulsed Laser , Mode-locked Laser, Picosecond Laser, OEM Laser Module , Fiber Coupling Laser, High Frequency Modulation Laser and Line Laser .
Laser, Blue Laser 1W, Best Green Laser Light, CW Dpss Red Lasers
Changchun New Industries Optoelectronics Technology Co., Ltd. , https://www.lasersciences.com