pumping lemma

例句：

1. 1.The pump's pumping lemma is essential for the operation of the machine.
   泵的叶片对于机器的运行至关重要。
2. 2.The pump's pumping lemma was designed to improve efficiency.
   泵的叶片被设计来提高效率。
3. 3. The pump's pumping lemma is responsible for transferring fluids through the system.
   泵的叶片负责通过系统传输流体。