total operating cost

All of those works will be very easy to implement if the matched condenser is supplied locally in China, therefore, total operating cost will be much lower.

所有这些工作，在国内配套供货情况下都比较容易实现，因此，整个运行费用将低很多。

To cut diesel fuel cost is an effective measure to decrease total operating cost of railway transportation and also a main way to improve the economic benefits of railway enterprise.

降低燃油成本是降低铁路运输运营总成本的有效手段，也是提高铁路企业经济效益的重要途径。

According to the statistics data, the maintenance cost of the aero-engine accounts for more than 30 percent of the total operating cost of airlines, which reveals much controllable margin.

据统计，航空发动机维护成本占据航空公司直接运营成本的三分之一强，有很大的控制余量。