Add Expires and max-age directive of Cache-Control HTTP Header in server responses.

在HTTP头信息里加入缓存控制过期和最大存活时间标记。

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This idea to realize the intellectualized control welding system has certain directive purport.

对实现焊接系统的智能化控制具有一定的指导作用。

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In the control system, operating through the PLC issued a directive, the drive time relay.

在该控制系统中，操作人员通过PLC发出指令，驱动时间继电器。

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The European Union's data protection directive, the most sweeping recent attempt, gives individuals unprecedented control over information about themselves.

ECONOMIST: The end of privacy

In January, the FAA issued an airworthiness directive ordering airlines to provide flight manuals that outline procedures for pilots to regain control of a 737 that goes into a sudden turn or roll.

CNN: NTSB urges pilot training for 737 rudder problem

Mr Lewis said that although the changes had been brought in because of an EU directive, the union was arguing for a "fairer balance to be struck" between control measures and ensuring that cattle farming businesses can be run.

BBC: Bovine TB controls 'strangling farming' says NFU Cymru