low pressure pump

Measurement of steam loss in a steam heating system;

蒸汽供暖中蒸汽损耗量的测定

steam heating or hot water heating.

办公室和厂房供暖常采用蒸汽供暖或热水供暖。

Approach to the practicality of down feed and mid return steam heating system;

上供中回式蒸汽供暖系统的实用性探讨