On-line communicational silicon-controlled rectification power source with consumable electricity and low efficiency will increase operating cost.
在线通信用可控硅整流电源自身电耗高、效率低,使运行成本增加;
The invention greatly reduces the production cost and energy consumption, and saved energy by about 40% in rectification.
本发明大幅降低生产成本和能耗,精馏节能40%左右。
The use of one transformer to run two groups of rectification circuits has also reduced the cost greatly.
用一只变压器带二组整流电路成本也大大降低。
Through the introduction of a practical example of rectification of dangerous building by using stress release method it proved that the method is an effective one with low cost and high benefit.
通过介绍某危房用应力解除法纠偏的工程实践,说明该法成本低、收效高,是一种行之有效的方法。
Rectification is a kind of unit-operation that needs high cost.
精馏是一种高投入的操作。
Rectification is a kind of unit-operation that needs high cost.
精馏是一种高投入的操作。
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