The problem of noise exists not only in a single observational point with single means but also in networks with many observational points and means.

前兆观测中的噪声问题，不仅存在于单点单手段的前兆观测中，而且还存在于有多点多手段的前兆台网中。

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Others point to observational and anecdotal evidence that homeopathy does work and argue that it should not be rejected just because science has not been able to explain it.

另外一些人却指出了通过观察或者一些传闻能证明顺势疗法确实有效，并认为它们不该被抛弃只因为现有科学无法解释它。

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Ireland's Guggenheim Grotto creates an electronics-infused brand of folk music, blending programmed beats and acoustic instruments with point-on harmonies and honest, observational lyrics.

NPR: Guggenheim Grotto On Mountain Stage