shallow crack 中文意思是什麼
shallow crack
解釋
淺裂紋-
With stromatolite but no desiccation crack, the depositional environment of middle - late cambrian in the area was intertidal zone to subtidal zone with the shallow - water features
根據其中的疊層石和無明顯泥裂構造，推測為潮間帶局限潮下帶沉積環境。 -
Analyzing falling crack failure of overburden strata of shallow coal seam and its control method
淺埋煤層覆巖切落裂縫破壞及控制方法分析
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