In this study, the echinocandin B residue is used as alternative medium of nitrogen in the production of different kinds of antibiotics. The results showed that the fermentation unit of echinocandin B has declined remarkably with the alternative nitrogen. 本研究以ECB发酵废渣作为培养基中氮源的替代品生产不同品种抗生素,试验结果表明,废渣替代黄豆粉或酵母粉生产ECB时,发酵单位均明显下降。
Therefore, this is a particularly important performance parameter that must be exam-ined for any alternative quenching medium. 因此,淬火特性是任何一种可选择的淬火介质都必须要检验的一个非常重要的性能参数。
Through calculation, it is proposed to use dry gas as an alternative dilution medium for the reductions of sour water and energy consumption as well. 通过计算得知,注水改为注干气,能量消耗降低,投资虽有所增加,但可以由减少的污水汽提及处理设施的费用中得到补偿。
Injection of dry gas into delayed coker heater coil as an alternative dilution medium for reduction of sour water pollution 延迟焦化加热炉管注水改为注干气消除含硫污水污染
The Alternative and Approach of Modern Teaching Medium in Teaching in Colleges and Universities 现代教学媒体在高校教学中的选择与应用研究