常見例句雙語例句The research achievement of the embankment constructed with frost susceptibe a loose fine aggregate and fly ash and frost prevention are introduced.主要介紹冰凍地區(qū)利用具有一定凍敏性的松散細(xì)集料粉煤灰修筑路堤及凍脹防治的研究成果。As concrete fine aggregate, it can improve structure of interface between aggregates and cement paste for its reactivity, then can increase the concrete flexural strength.作為混凝土細(xì)骨料，由于其活性可以改善骨料與水泥漿體的界面結(jié)構(gòu)，故可以提高混凝土的抗彎強度；Slices from the top, bottom, sides and bulk of each specimen were examined by methanol exchange, quantitative determination of coarse and fine aggregate and backscattered electron imaging in the SEM.分別從每個樣條的頂部、底部、側(cè)面和本體取樣，通過甲醇交換，粗細(xì)集料的定量測定和在SEM中的背散射電子成像對試樣進行檢測。76616.com 返回 fine aggregate