This is only a draftdesign of this product, we'll make further improvements.
仅仅是该产品的设计草样，我们还要进一步修改和完善。
2
The feasibility study and draftdesign of China's aircraft carrier started in 1992.
可行性研究和设计图稿中国航空母舰始于1992年。
3
It is suitable to calculate the quantities of subgrade protection and drainage project, especially in the draftdesign and predesign phase of the highway or railway.