常見例句Due to the presence of substrate gradients in a bioflim, the amount of OC is difficult to be assessed with experiments.由于在生物膜內(nèi)存在著基質(zhì)擴散梯度，所以，通過試驗方法確定凈耗氧量十分困難，甚至難以實現(xiàn)。 返回 bioflim