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生化需氧量 shēnghuà xūyǎngliàng
biol.	demande biochimique d'oxygène
environ.	demande biochimique en oxygène (在特定温度和给定的时间内，单位体积的水生化氧化的耗氧量。BOD是水体有机污染的程度的指数。)