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n.（保持船身穩(wěn)定的）壓艙物( ballast的名詞復(fù)數(shù) )，鎮(zhèn)定物，安定，壓艙材料...

ballasts的音標(biāo)：...

Our company specializes in producing electronic ballasts of efficiency fluorescent illumination products.本公司是一家專業(yè)從事自主研發(fā)高性能熒光燈電子鎮(zhèn)流器的生產(chǎn)廠家.Applied in: - saving lamps, fluorescent electronic ballasts and digital multi - mete...