proximal end

例句：

1. 1.The proximal end of the pipe is where the valve is located.
   这个管子的近端端是阀门所在的位置。
2. 2.The proximal end of the road is blocked by a large tree.
   这条路的近端端被一棵大树堵住了。
3. 3.The proximal end of the bridge was damaged in the storm.
   这座桥的近端端在暴风雨中受损了。