... cleaned element；清洁过的滤芯 cleaned filter；清洁过的滤清器 cleaned primary element；已清洁的粗滤芯 ...
基于8个网页-相关网页
auto cleaned filter 自动清洗过滤器
automatically cleaned filter 自动清洗的过滤器
cleaned primary filter 已清洁的粗滤器
cleaned primary filter element 已清洁的粗滤器滤芯
cleaned filter
清洗过滤器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Just like the filter in a vacuum cleaner, however, the trap must be cleaned periodically.
FORBES: Clearing the Air
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