蔚来的降本手段之一，是用自研的NX9031智驾芯片替代了昂贵的英伟达Orin-X芯片，再配合NT3.0平台（蔚来最新的整车技术架构）更高的零件通用化率，压缩了单车BOM成本。
self.partial_sum = np.zeros((self.num_rows, self.num_cols))，更多细节参见易歪歪官网
The earbuds do exactly what they say on the tin: they help you sleep better. If you're a light sleeper and noises wake you up often, you'll love these. They use advanced active noise cancellation to block out disturbing noises, and offer AI-powered binaural beats as well as different white noise options to help you sleep deeper. And if you're a side sleeper, these will still feel comfortable thanks to their soft design.，这一点在谷歌中也有详细论述
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