为了提高双抽汽供热汽轮机的热效率，改用循环水供热。

To enhance the heat efficiency of dual extraction heating turbine, circulating water heating is adopted.

youdao

为了提高双抽汽供热汽轮机的热效率，改用循环水供热。

To enhance the heat efficiency of dual extraction heating turbine, circulating water heating is adopted.

youdao