or even completely ineffective
Commonly used in the array to test the algorithm,signal source is generally considered as the number of prior parameters,when the signal source estimation is error,the performance of position estimation is serious decline,or even completely ineffective.
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or even completely ineffective
甚至完全无效
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The most detrimental impurities in the feed water are anionic high molar mass substances. They can greatly reduce the efficiency of the retention AIDS or even make them completely ineffective.
为减少水耗可以用循环水，供水中最有害的杂质是阴离子高分子量物质，会大大减少助留剂的效率，甚至使它们完全失效。
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