tubular sole

例句：

1. 1. The pipe is made of tubularsteel.
   这个管子是用管状钢制成的。
2. 2.The rocket was designed to travel ina tubular shape.
   火箭的设计是呈管状形状。
3. 3. The tube is filled withwater and sealed at both ends.
   管子里灌满了水，两端都密封了。