短語詞組短語vortex -shedding flowmete 渦街流量計The vortex -shedding flowmeter 渦街流量計regular vortex -shedding phenomenon 規(guī)則的漩渦剝離現(xiàn)象optical fiber vortex -shedding flowmeter 光纖渦街流量計 返回 vortex shedding