Have you heard of n.i.h.-the Not Invented Here syndrome?

你是否听说过非我发明症？

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There is also the "not-invented-here" syndrome that biases teams towards developing their own components as opposed to reusing others'.

况且还有“非我发明(Not - Invented - Here)”综合症，会让团队排斥重用别人开发的组件，偏好自己另起炉灶。

youdao

Microsoft seems to suffer from the good old "not invented here" syndrome, not only when it comes to external code.

微软似乎患上了流传多年的“不是自家发明(Not invented here)”综合症，而且排斥的对象不仅仅是来自微软外部的代码。

youdao

Aside from often being stinkers, pilots can suffer from the "not-invented-here syndrome, " as Levin calls it: the perception that once something is damaged or didn't work, it cannot be resuscitated elsewhere.

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