shim是什么意思

用法例句

By means of similarity analogue and dynamic measurement,the deformation of the secondary grouting of boarding plate free installation is measured by stages and studied.

运用相似模拟方法和动态测试手段，对机械设备无垫板安装二次灌浆层的变形进行了分期测试和研究，证明无垫板安装二次灌浆层具有长期承载和抵抗变形的能力。