离层

Through Analysis on roadway roof separation time and law,Adoption malison reinforcing roadway roof separation Exceed the range area,Make the obvious result.

通过对巷道顶板离层时间及规律进行分析,采用马丽散对顶板离层超范围区进行加固,取得明显效果。

Tyloses are often found in injured tissue, older wood, and below an abscission layer, and can completely block the conducting vessel.

受损害的组织、衰老的木材离层下方的位置常发现侵填体，这可以完全阻塞负责运输的导管系统。