词汇	acoustical holograph
释义	acoustical holograph 声全像术
随便看	mechanical float mechanical floatation cell mechanical floating ring seal mechanical flocculation mechanical flocculator mechanical flocking mechanical floor mechanical flotation cel mechanical flotation cell mechanical flotation machine mechanical flow diagram mechanical flow digram mechanical flowmeter mechanical flowsheet mechanical flyball-type governor mechanical flying spot scanner mechanical flyweight governor mechanical foam mechanical foam concentrate mechanical foam extinguishing installation mechanical foam extinguishing system mechanical foam generator mechanical foaming mechanical foam nozzle mechanical-foam nozzle