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Little has been said about purpose sampling which is used much more in practice.
对使用较多的有目的抽样则阐述较少。
youdao
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The invention can achieve the purpose of sampling accurately in constant speed.
本发明可精确实现等速取样的目的。
youdao
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The invention can achieve the purpose of sampling accurately in constant speed.
本发明可精确实现等速取样的目的。
youdao