running expense

基本解释

On the other hand, the technique has the characteristic of small investment and running expense, easy manipulation.
另一方面具有污水处理投资少，运行费用低，占地少，操作简便等特点；
The authors presented principle, process, operation, applied range and running expense of a bioslurry reactor, with an emphasis on the intensifying method.
总结了生物泥浆反应器这种高效生物修复技术的原理，工艺流程、运行方式、应用范围和运行费用，并重点介绍了其强化手段。
Environmental impact and running expense of minitype gas-fired boiler and oil-fired boiler are compared and analyzed in this paper from the environmental economy angle.
从环境经济学的角度，对一般常用的小型燃煤锅炉与燃油（气）锅炉的环境影响及运行费用进行了比较分析。

And in making these calculations, Mr Malkiel plays fair: he deducts the typical running expense (one-fifth of 1%) charged by an index fund.
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