单词	duplex copying
释义	duplex copying 二重复印
随便看	yellow phosphorus yellow phosphorus amorphous yellow phosphorus furnace yellow phosphorus furnace slag yellow phosphorus industry yellow phosphorus industry leachate yellow phosphorus leakage yellow phosphorus match yellow phosphorus off-gas yellow phosphorus poisoning yellow phosphorus production yellow phosphorus products yellow phosphorus purification yellow phosphorus slag Yellow phosphorus smoke Yellow phosphorus stag yellow phosphorus tail gas Yellow phosphorus tank leakage yellow phosphorus wastewater yellow phosphours Yellow phosphrous furnace Yellow phosphrous sewage yellow pockets yellow podzolic soil yellow podzolic soils