variable charge造句

例句与造句

1. The influence of external thermal insulation technology for external wall on variable charge for heating under two heat prices is analyzed , the study is made on the investment recovery period of external thermal insulation system for external wall at different shared ratios when the energy saving renovation of existing buildings is conducted for a certain external thermal insulation system with heating price of 40 yuan / gj
   分析了在两部制热价下外墙外保温技术对可变热费的影响，研究了采用某外墙外保温系统进行既有建筑节能改造，当热价为40元gj时，不同分摊率下的外墙外保温系统的投资回收期。
2. It's difficult to find variable charge in a sentence. 用variable charge造句挺难的