单词	returned sludge ratio
释义	returned sludge ratio 污泥回流比
随便看	productive factor input Productive Factors productive farmers/workers productive fiexd assets productive financial plan productive-financial plan productive force of culture productive force of influence productive force productive force and relation of produ ction productive force economics productive force of labour productive force of law enforcement productive force of sincerity productive-force-practice productive forces productive forces criterion productive forces development productive forces distribution productive forces layout productive forces of culture productive forces scale productive forces system productive forces theory productive forces theory of value