gas relative permeability [能源科學(xué)技術(shù)]氣體相對(duì)滲透率gas reinjection [能源科學(xué)技術(shù)]天然氣回注gas regulator 節(jié)流閥；[化工] 氣體調(diào)節(jié)器gas reforming [冶金工程技術(shù)]煤氣變換gas recycling [能源科學(xué)技術(shù)]天然氣回注gas recovery velocity [能源科學(xué)技術(shù)]采氣速率[土木建筑工程]采氣速率gas recombination by catalyser type [動(dòng)力與電氣工程]觸媒氣體復(fù)合式gas recombination [動(dòng)力與電氣工程]氣體復(fù)合gas recoil chamber [能源科學(xué)技術(shù)]氣體反沖室gas receiver 儲(chǔ)氣罐，貯氣器gas range gas pyrometer [經(jīng)濟(jì)學(xué)]氣體高溫計(jì)gas purifier 氣體凈化設(shè)備；[化工] 煤氣凈化器gas purification system reflux [土木建筑工程]氣體凈化系統(tǒng)回流gas purification catalyst [能源科學(xué)技術(shù)]氣體凈化催化劑gas purification 煤氣凈化；氣體凈化gas purging 氣體充換；[制冷] 氣體的排除gas purge system 氣體凈化系統(tǒng)gas purge 氣體清洗；氣體凈化gas pump 氣泵；煤氣泵；氣體泵