thin-out of coal seam, pinch-out of coal seam_煤炭科技英汉词典
thin-out of coal seam, pinch-out of coal seam
[煤炭科技英汉词典]
thin-out of coal seam, pinch-out of coal seam煤层尖灭
煤层在空间变薄以至消失的现象。
是什么意思，thin-out of coal seam, pinch-out of coal seam的解释，thin-out of coal seam, pinch-out of coal seam的翻译
