sand jack

• 砂箱千斤顶,砂箱

sand jack的用法和样例：

例句

1. Sand box analog models have been proved to be powerful tools for demonstrating the structural styles of extensional fault systems.
   砂箱模拟实验已被证明是研究盆地内部伸展断层系统的有效工具。
2. There are different opinions about thickness of sand mats for consolidation method.
   摘要排水固结法需要的砂垫层厚度一直存在争议。