尽管美捷步在2009年时被亚马逊收购，它仍然拥有相对自主的权利，能够用和以往相同的方式去经营公司。
Although it was acquired in 2009 by Amazon, the online retailer retains relative autonomy and the right to run itself the same way as it did before.
他指出，要捕捉更高的频率需要收集更多的数据，这对在自主潜水器上使用的相对小而简单的系统来说一直是一个局限。
More data need to be collected to capture higher frequencies, he notes, and this has been a limitation for the relatively small, simple systems used on autonomous subs.
自能学习是一种自主的、能动的学习方式，与传统的接受学习相对。
Self learning is an autonomous, dynamic learning, learning to accept the traditional relative.
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