Horizontal layering is a prerequisite for the application of geoelectric master curves. 水平分層是應用電量板的先決條件。
The upward horizontal slice stoping and filling without intervening pillar is the main mining method in Huangshaping Pb-Zn Mine. 摘要上向水平分層充鎮無間柱採礦法是黃沙坪鉛鋅礦的主要採礦方法。