Profits used to come from selling engines and replacement parts. Now they come from providing long-term repair and maintenance-or "power by the hour".

公司原本通过销售引擎和零部件来获取利润，而现在则通过提供客户长期的检修和保养服务或者称之为“按飞行小时包修合同”。

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The power of the wallet is that it securely stores this information for users, providing them an easy, secure shopping experience, and freeing them from repeatedly entering information.

该钱包的作用就是为用户安全地存储这些信息、提供轻松安全的购买体验，并使用户避免进行重复的信息输入。

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The spray pump unit (100) also has an air source (180) for providing power to the pump and air to deliver the texture material from the gun.

喷涂泵单 元（100）还具有空气源（180），该空气源用于提供动力给泵，并提高空 气，以从喷枪输送纹理材料。

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For example, the first phase of the EU Emissions Trading program, which contained several design flaws that have since been rectified, has already been found to have reduced emissions by around 100 million tonnes of CO2 mostly by forcing a shift of load from coal to gas power plants and providing an incentive for inefficient coal plants to improve the thermal efficiency of their boilers.

CNN: Your ask the expert: Carbon trading, part 2

The smaller warships are multi-mission vessels that help protect the strike group from overhead, surface and undersea attack while providing additional striking power, mainly in the form of cruise missiles.

FORBES: Despite Budget Woes, The Navy Is Unlikely To Cut Carriers

Ideas ranging from education to potable water to harnessing the power of imagination are providing outlets for change.

FORBES: 'What's Next' in the World of Social Innovation?