Eurocrats say a reduced emphasis on auctioning permits won't undermine the benefits of the package; carbon-cutting discipline still comes from the ceiling on the number of allowances issued.

欧盟的官员说，减少对拍卖许可的重视并不会损害这一揽子计划带来的好处，减排的执行仍来源于对最大允许量的控制。

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This can cause the number of active threads to reach a ceiling.

这可能导致活动线程数封顶。

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A steel grid attached to the ceiling incorporates a rail with moveable lighting fixtures, which can be slid up and down to adapt to the cafe's number of USES.

附加到天花板的钢格栅，包括具有可移动照明固定装置的轨道，可以上下滑动以适应咖啡馆的使用方式。

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And also places an overall ceiling on the number of warheads that can be deployed on those systems.

VOA: standard.2009.04.08

Where you ended up more familiar with the number of acoustic tiles in the ceiling than the number of points in the outline of the speech?

FORBES: The Only Reason To Give A Speech In 2011

"There are very strict rules about opening pharmacies, for example, with a ceiling to the number of stores allowed in each town, " he says.

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The French minister said he had proposed a "ceiling" on the number of immigrants allowed into the G5 nations each year.

BBC: NEWS | Europe | Europeans join forces on migrants