This article introduced a general method of drawing plane right-angle coordinates in Borland c++Builder 6 and explained how to use its code in detail.

针对直角坐标系下圆周截面形状误差评价，介绍了一种圆柱体截面圆度误差的测量与评定方法。

youdao

If you cannot answer these questions clearly, you probably need to go back to the drawing board and be sure you are in the right place before you engage the general public in funding your business.

FORBES: Why We Chose Crowdfunding For Our Product (Should You?)