interior differential needle valve

例句：

1. 1.The interior differential needle valve is used to control the flow of oil in the engine.
   内部差动式针阀用于控制发动机中油的流动。
2. 2. The engineer carefully inspected the interior differential needle valve before installing it.
   工程师在安装之前仔细检查了内部的差动式针阀。
3. 3.The interior differential needle valve was designed to improve the efficiency of the engine.
   内部差动式针阀被设计来提高发动机的效率。