基本解釋[土木建筑工程]保護混凝土層[機械工程]保護混凝土層英漢例句雙語例句Secondly , protective layer thickness is too thin to protect concrete reinforced bar and reduce durability.保護層厚度不夠?qū)е落摻钔饴兑痄P蝕，降低了橋梁的耐久性；The calculation method about the minimum lining thickness of concrete protective layer is given in the cold region.提出了寒區(qū)混凝土防護層渠道最低襯砌厚度的計算方法。To evaluate the full-span durability life of reinforced concrete structure, the expanding process of corrosive crack in protective layer concrete is studied in this paper.為了對鋼筋混凝土結(jié)構(gòu)的耐久性全壽命進行評估，研究了保護層混凝土銹脹裂縫的擴展及過程。protective concrete layer更多例句詞組短語短語concrete protective layer 混凝土保護層reinforced concrete protective layer 鋼筋的混凝土保護層protective concrete layer更多詞組專業(yè)釋義土木建筑工程保護混凝土層機械工程保護混凝土層