straight tube

• 直管

straight tube的用法和样例：

例句

1. The tube can be provided in coils or cut to length.
   可以根据用户要求提供任意长盘管或直管。
2. The nonlinear vibration of the straight pipes of heat exchanger was analyzed based on the equivalent-linearized theory, and the control methods of vibration were pointed out.
   摘要利用等价线性化解析方法，分析换热器直管的非线性振动，并指出振动的控制方法。