upon which的用法和样例：
例句
- The glass front of a cathode-ray tube upon which the image is displayed.
显像管阴极射线管的玻璃前端，图象显示在其面 - In wood-frame construction, a horizontal member, capping the exterior wall studs, upon which the roof rafters rest.
横木木结构建筑物中覆盖外墙壁骨的水平构件，屋横椽被支撑在它的上面 - One that withholds agreement or consent upon which progress is contingent.
坚持不合作者，不让步的人拒绝同意或满意与进程有关事项的人 - A layer of mortar upon which stones or bricks are laid.
灰浆层一层铺放石头或砖的砂浆层
