原文
The slingshot method is a useful strategy to manage tech spread. You choose not to research a tech that is currently spreading even if it is a desirable tech with the idea of maximizing the amount of weeks that tech spread is working to your benefit. When a spreading technology is finished, another is chosen at random, which is not guaranteed to be a priority. Instead you choose to begin researching a different technology, that still has an ahead-of-time malus. You do not intend to finish the technology, but only to research it up until the point, where it would have been completed without the ahead-of-time malus. When the spreading technology is finished, the malus is removed from the top, meaning the more expensive technology is now merely 1 week away from completion.
A common example is all countries that start with every era 1 production technology except for Lathe Lathe. In this scenario it is guaranteed that Lathes will begin to spread as the first technology. Instead you begin to research Atmospheric Engine Atmospheric Engine, an equally desirable tech. If lathes is fully completed, and then atmospheric engine is fully completed afterwards, it will cost a total of 17,500 innovations (7,500+10,000), but it is not guaranteed that tech spread will help with the second tech. If atmospheric engine is completed followed by lathes, it will cost 20,000 innovation (7,500+12,500), but tech spread will help with virtually the entire process. With the slingshot method, the cost will still be 17,500, and it is guaranteed that tech spread will help with virtually the entire process.

没毛病啊，不是经常这么干吗，上一级就剩一个弱的了就提前研究下一级的

这不是常规操作吗

火星救援

闹洋相了

这是基操了，两年前我就这么玩了，不过自从有国家集团后，中等落后国家建议开五级教育硬顶着惩罚把最后大学的生产方式冲出来，这样会快很多

还有一个法子，传播新技术的前一周sl修改世界线。改建筑序列能改传播对象。

可是我超前研究经常会忘记手动调换，导致最后真的吃到超前惩罚就不能设置一个游戏内提醒吗