As a duster, 140 ha could be treated at the same discharge rate.

作为一个除尘器，140医管局可以被视为在同一排放率。

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But a feather duster, duster sediment deposition is not easy as long as pay attention when the ash, can avoid to scratch paint.

而且鸡毛掸子不容易积泥沙，掸灰时只要稍加注意，就可以避免划伤油漆。

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Duster started out as a journalist but quit in moral indignation when chided for failing to interview a trapped subway motorman waiting for a leg amputation.

达拉斯原是个记者，因为无法采访到一位受困、等待截肢的地铁司机而遭到责骂，基于道德义愤便辞了职。

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Throughout his life, John Walton pursued various business interests, at one time working as a crop duster and later as a boat builder.

FORBES: Crash Claims Wal-Mart Heir John Walton