A.≤8kg/h B.≤6.4kg/h C.≤5kg/h D.≤3.2kg/h
A.80m,100kg/h B.160m,50kg/h C.160m,100kg/h D.80m,50kg/h
A.火電廠(chǎng)備煤車(chē)間破碎機(jī)排氣筒 B.火電廠(chǎng)發(fā)電鍋爐煙囪 C.陶瓷隧道窯煙囪 D.水泥廠(chǎng)石灰石礦山開(kāi)采破碎機(jī)排氣筒