permanent closed type 中文意思是什麼
permanent closed type
解釋
永閉式-
Waste. determination of the permeability of a permanent geological formation of added or artificially reconstituted materials. closed - type, single - or double - ring infiltrometers
廢物.添加的或人工重造材料的永久生物形成的滲透性測定.封閉型單環或雙環滲透計
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