It's hard to define what "kernel tech" is. But there are lots of know-hows that China doesn't possess for now. Some really appear simple. An example is the seal of a milk jug. It has to be tight enough to seal properly,

sailor (Ocean & Mountain)
however should not require effort to pull off so that even weak seniors are able to do it.
7-29 -04:00
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Back To Topic: 加拿大具体有些什么核心技术中国没有的?如果肉联有人从事这方面的以后还是要小心.

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