“承板”用英语怎么说？

当汽车倾倒时, 滚珠迫使柱塞落在支承板上.With the car upside - down, the ball forces the plunger to seat against the guide plate.前面与后面支承板表面粗糙.Rough surface in front and back plate.楼层结构由框架柱 、 楼层梁 、 钢楼承板以及边模板等组成.Mezzanine structure is make up...