凝土芯砂石桩
concrete-cored sand-gravel piles
三高土
Huaibei & Huainan Coalfield cities
三甲硅基环戊二烯土二氯化物
Trimethylsilylcyclopentadienyl lanthanide dichloride
三峡茅坪溪防护土石坝
Three Gorges Project’s Maopingqi protective rockfill dam
三元柱交联蒙脱土
cross-linked montmorillonite CLM