例句與造句

1. heating installations for different sources of energy; use of heat pumps including electrically operated compressors in bivalent heating installations
   不同能源用采暖設(shè)備.第2部分:二價(jià)采暖設(shè)備的熱力泵包
2. It's difficult to find use of heat pumps in a sentence. 用use of heat pumps造句挺難的