Not only is "efficiency" a myth, then, but so too is any concept of social or additive cost, or even an objectively determinable cost for each individual.
那么，不仅“效率”是一个误区，任何社会成本、加总成本，甚至连客观测定个人成本的概念也不例外。
The heat medium water additive is low cost, simple technics, low corrupt and good safety capalibity and take on good economy profit and military affairs purport.
该水热媒添加剂成本低、工艺简单、腐蚀性小、安全性高，具有很好的社会效益和军事意义。
The color sizing and additive join the mixing head directly, reduction of cost , increase of efficiency(optional parts).
色浆和添加剂直接进入混合头，降低成本，提高效率（选装部件）；
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