dry-cold相关论文
为探讨青藏高原严酷环境下粉煤灰掺量对混凝土强度的影响,在室内模拟青藏高原干冷、干热的环境条件,对C60混凝土的配制与施工中粉煤......
采用NEL快速试验方法,研究了水灰比、外加剂以及粉煤灰和硅粉两种矿物掺合料对混凝土抗氯离子渗透性能的影响。试验结果表明:水灰比......
The Dry-Cold Climate of the Qijia Archeological Civilization in Chankou of the Loess Plateau along t
Objective Large numbers of archeological relics from the Neolithic period are widely distributed in all tributaries of t......