报告显示，我国苹果年总产量达5100多万吨，年消费量超过4700万吨。庞大数字的背后，是种业“中国芯”的强势崛起。目前我国已培育自主产权苹果新品种158个，新建果园70%选用国产品种，采用现代高效栽培模式。
Add a cluster of points in one corner and watch that corner subdivide deeply while the rest of the space stays untouched. Then scatter a few points across the empty region and watch it split only where needed. The tree grows around the data.
，更多细节参见safew官方版本下载
FT Professional
Why SpeedPro works