The new digital systems replace older technology controls, which has greatly improved reliability.

新的数字化系统代替了旧的技术控制，此举在很大程度上提高了可靠性。

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America even has too much garbage dump capacity, thanks to the fact that we have been building large regional dumps to replace older, smaller local dumps.

美国的垃圾倾卸能力非常强，因为美国人一直在修建大型区域性垃圾场，以取代陈旧的小型地方性垃圾场。

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It will involve swapping cheap but dirty fuels for cleaner but dearer ones, as Congress intends, as well as building lots of expensive new power plants to replace older, more polluting ones.

这包括国会计划的将低价但不清洁的燃料换成清洁但高价的燃料，还包括建造许多昂贵的新电站来取代污染环境的旧电站。

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States can also replace an older statue with a new one.

VOA: special.2010.01.27

That includes launching as many as four new satellites a year to replace older ones.

FORBES: Europe Reinvents GPS

Twelve modern Class 175 trains, currrently with the Trans Pennine service, will replace older rolling stock in the Arriva Trains Wales fleet.

BBC: NEWS | UK | Wales | North West Wales | Passenger 'shabby' trains anger

Most analysts agree that as Z10 and Q10 replace older BlackBerry models, service revenues related to consumers will fall off a cliff.

FORBES: BlackBerry Earnings Report Won't Reveal Much