Another painful affliction was boils, big and frequent.

另一个折磨我的病痛是疖子，又大又频繁。

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In the later period of oilfield development, high water cut in produced fluid and unstable produced fluid volume may cause big and frequent disturbance in the electric dehydration system of crude oil.

油田开采后期，采出液中含水率很高且采出液量极不稳定，这就导致原油电脱水系统频繁受到大的干扰。

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Big American utilities have little interest in teaming up with nuclear vendors to mount joint bids abroad; Japanese ones have a distressing record of falsified inspection reports and frequent outages.

在美国，大型公共事业项目并没有兴趣联合核供应商到国外去发标，而日本核项目的检验造假和停电事故频繁。

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Importantly, as far as players and their salaries are concerned, these two teams are traditionally frequent and big spenders in free agency.

FORBES: With The Salary Cap Lawsuit, The NFL Players Association Finally Grows A Spine

Firms want to know three things: whether big storms are becoming more or less common, whether certain coasts are being hit more or less often, and just how frequent are the biggest of the big storms the ones whose effects could break a careless insurance outfit.

ECONOMIST: Eye on the storm | The

Skilful use of data allows companies both to spot which customers are worth fighting for (the frequent flier, the account holder with a big loan and a regular job) and then to offer them hefty discounts, to reduce the risk that a competitor will poach them.

ECONOMIST: Managing customers