求翻译：失败后，我们尝试使用软陶来作为载体，由于孔隙率无法达标。经过方案更改后，我们把磁条插入海绵，形成磁场的同时海绵也作为细菌A的生长载体。经过一段时间的培养，我们分别测定了含磁场的培养瓶的铬含量和不含磁场的培养瓶的铬含量，进行分析对比，以此探究磁场对菌种A处理铬废水的影响。是什么意思？

After a failed attempt to use clay as a carrier, the porosity can not be standard. Program changes, magnetic stripe insert sponge, sponge of the formation of the magnetic field at the same time also as the growth of bacteria in a carrier. After a period of culture, we determined the chromium content

After the failure, we will try to use a soft ceramics as a carrier, and the porosity is not up to standard. After a program change, we have inserted into the magnetic stripe of the sponge, and form a magnetic field and as a sponge and the bacteriological A carrier. After a period of training, we hav

After the defeat, we attempt use the soft ceramic to take the carrier, because the factor of porosity is unable to attain a designated standard.After the plan change, we the bar magnet insertion sponge, form the magnetic field at the same time sponge also to take bacterium A the growth carrier.After

Fails, we try to use soft Tao Lai as the carrier, due to porosity not compliance. After change, we insert the magnetic sponge, formation of magnetic fields at the same time a sponge as a carrier of a growth of bacteria. After a period of training, we had separate determination of chromium content of

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