选用复配使用的阴阳离子表面活性剂，通过沉降实验、纳米颗粒的极限分离直径和TEM来测试纳米颗粒在瓦特镀液中分散性能好坏。
By using the mixture of anionic surfactant and cationic surfactant, we can define the stability of SiC suspension with sediment experiment, the limited separation diameter and TEM.
文中提出的承载力取值和沉降计算是一套适合于我国大直径扩底桩的设计方法。
The way to value the bearing capacity and settlement calculation given herein are fit for the design of large diameter belled pile in China.
结合某大直径钻孔灌注桩工程实例，分析了桩土模型的荷载-沉降曲线及荷载的传递规律。
Combined with a project example of a big diameter drilling pole pile, the load-settlement curve and load transfering law of pile and soil FEM are analyzed.
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