expense of developing meaning in Chinese

发展费用
开发费用

In order to quicken the rapidity of developing for thermal power system and decrease the expense of developing , it is very significant to design a flexible , convenient and excellent graphic modeling software for thermal power system
为了加快热力系统开发速度和减少开发费用，设计出一套灵活、方便、优秀的热力系统图形化建模软件是非常有意义的。
These extra costs include not only frequent transoceanic travel , but also the expense of developing foreign contacts , conforming to unfamiliar governmental regulations and , most important of all , mastering a new language and culture
这些多出的成本不仅包括频繁的交通费用，还包括发展国外新用户，了解并遵守不熟悉的外国管理规则，更重要的是，了解外国的语言和文化所需要花费的成本。