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The gas throttling governing system comprises a pressure-limiting valve, a speed-limiting valve and a partition board. 氣躰推助器包括波紋琯及內(nèi)部彈簧、排氣閥、吸氣閥，氣躰節(jié)流調(diào)節(jié)系統(tǒng)包括限壓閥、限速閥、隔板。 ip.com