需要指出的是，燃气机热泵的速度调节是有限制的，并不能任意调节，这与发动机和压缩机的工作特性有关。

It should be noted that the rate of gas engine heat pump is limited regulation, and can not be any regulation, which is the work of the engine and compressor characteristics.

youdao

我并不是就有限调节而言，而是就你的个人演化而言；

I speak not in terms of finite coordinates but in terms of your personal evolution;

youdao

但是该模型的调节范围有限。

However, the range of this model is limited.

youdao