基本解释生物膜同根派生 bioflim相关词英汉例句Due to the presence of substrate gradients in a bioflim, the amount of OC is difficult to be assessed with experiments.由于在生物膜内存在着基质扩散梯度，所以，通过试验方法确定净耗氧量十分困难，甚至难以实现。bioflim更多例句