Finding water nearby would not only reduce the cost and complexity of setting up a lunar colony, but would also help it become a staging post for future trips further into space.

倘若在该地点附近找到水的话，不仅降低能设立月球载入空间站的成本和复杂性，而且也将有助于成为未来进一步深入探索空间的补给基地。

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Micronized coal reburning and air staging are two kinds of typical in-furnace NO_x reduction technologies with advantages of high NO_x reduction efficiency and cost effective feature.

超细煤粉再燃和空气分级是两种典型的炉内燃烧脱硝技术，具有脱硝率较高，经济性较好的特点。

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That is more in a single year than the whole estimated cost of staging the London 2012 Olympics.

BBC: Jobs needed for 'sick' Britain

And yet, it isn't clear whether the cost of staging, which can range from a couple of hundred dollars for a consultation to several thousand dollars for a complete makeover, is justified.

WSJ: How Much Staging Is Too Much?--WSJ House Talk

Bakker said the number of broadcasters that share the cost of organising and staging the event enables them to keep it "affordable".

BBC: Eurovision bosses call dropout reports 'premature'