After tweaking the system to adjust the relative amounts of the enzymes, the researchers could feed their yeast a precursor chemical called thebaine, and get pure morphine in return.
在经过对植物体系进行酶相对数量的调整后，研究人员会在这些酵母中加入一种名为二甲基吗啡的混合化学物质，这样就会得到纯净的吗啡。
The system construction, PLC configuration and software design for chemical feed water treatment are researched and summarized.
着重从化学给水的系统结构到PLC的组态和软件设计等方面做了研究和总结。
An automatic control system for chemical injection into feed water is designed, using KMM single loop programmable controller.
设计了给水加药自动调节系统，并给出了用KM M单回路可编程调节器实现的方法。
An automatic control system for chemical injection into feed water is designed, using KMM single loop programmable controller.
设计了给水加药自动调节系统，并给出了用KM M单回路可编程调节器实现的方法。
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