key rock strata的意思|示意
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关键岩层
key rock strata的网络常见释义
关键层 ...关键层 缓慢下沉 [gap=855]rds : solid waste rock cemented backfill mining technology;overburden movement;key rock strata;slow subsidence ...
key rock strata相关短语
1、 key strata of covering rock 覆岩关键层