pump-free的用法和樣例：
例句
- Heat pipe ejective air conditioner is a new no pump system, which can use solar energy and other low-grade heat sources.
利用熱管和噴射器複合所組成的空調系統是一種可利用太陽能和備類餘熱的無泵型新型空調系統。 - The analytical solutions for the stead state equations of four wave mixing with an arbitrary complex coupling constant are given without the undepleted pump approximation.
在無泵浦非耗竭近似下，給出了復耦合係數為任意值時穩態四波混頻耦合波方程組的解析解。
