供电干线

注：该产品可整机供货。也可只供主机及部分部件，用于托辊胶带输送机的改造。

你供的主机滑油是散装，还是桶装。

Supply-side structural reform

regulated power supply

commdity supply【贸易】;commodity availability【贸易】;commodity supply potential volume【贸易】

emergency power supply unit

primary-air supply aperture, passage

central gas supply plant

Urban water supply

industrial water supply