sand seam的意思|示意
砂层
sand seam相关短语
1、 flow sand seam 流砂层
2、 medium-sand seam 中粗砂层
3、 watery sand seam 富水砂层
4、 sand seam geology 砂层地质
5、 sand-seam ground-surface 砂层地面
6、 sand control seam 防砂保护层
sand seam相关例句
This paper discussed the evolvement characteristics of sand bodies of the fourth coal bearing interval and its influence on No. 13-1 coal-seam thickness in Huainan coal field.
讨论了淮南煤田第四含煤段砂体的演化特征及其对13 - 1煤层厚度的影响。
When the seam was extracted, water from the sand layer penetrated into some coal faces.
煤层开采后，一些工作面出现了砂层水渗入井下的现象。
Special geological conditions including karst cave, flow sand seam and underground river are encountered during construction of railway and highway engineering.
在公路铁路基础建设工程中，常会遇见溶洞、流砂层、地下暗河等特殊地质情况。