Warning: file_put_contents(/www/wwwroot/ppbbu/5356789.com/cache/3dd023aa0e3ad848e7215ef298b4c120.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/5356789.com/index.php on line 55 gas hot-water heater例句_gas hot-water heater英汉例句_gas hot-water heater双解例句_零六五六深蓝词典
The individual heating system with gas-fired hot water heater and the heating system with gas-fired hot water boiler are introduced. 介绍了燃气热水炉单户供暖系统和燃气热水锅炉供暖系统,分析了供暖系统的调节方式。