Due to the heavy load on the database system, it does not make sense to have several threads cleaning the process or task instances at the same time.

由于会在数据库系统产生很重的负载，同时用多个线程清理过程或任务实例是没有意义的。

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Before you lift a heavy object, think through your task.

在你移动一件重物之前，想想你整个任务过程。

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This may become a problem if the hosting server (server 1) is under heavy load and has only a limited number of managed task resources available.

如果承载服务器(服务器1)负荷非常重，仅有部分托管任务资源可用，则可能会出现问题。

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"It's a big ship and to tow it, to move it across the waters, is a heavy task, " said Seychelles presidential spokeswoman Srdjana Janosevic.

WSJ: Towing Begins for Costa Cruise Ship Adrift After Fire

After that, a task force issued a heavy brick of a report detailing the event, one of several studies done after the fact.

FORBES: The Truth About the Flash Crash

The engineer and grandmother who climbed the ranks of the defense establishment while a single parent was charged with the difficult task of helping BAE make the transition from a supplier of heavy weaponry used in wartime, like the 33-ton Bradley Fighting Vehicle, into a more diversified provider of equipment, electronics and software.

FORBES: As Defense Budgets Shrink, BAE Talks Merger With EADS