From this I can calculate the estimated required power.

我可借此计算所需的动力估计值。

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But now many designers feel delicate how to select and calculate the required power load appropriately.

但如何恰如其分地选择与计算其所需的负荷则是目前很多电气设计人员感觉比较棘手的问题。

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The paper introduces a method to compute helicopter required power in detail from engineering application.

本文从工程应用角度出发，详细地介绍了直升机需用功率的计算方法。

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If a further inquiry were felt to be appropriate, then it should be initiated by those with the required power and authority.

VOA: standard.2009.08.24

"We deliver the required power at a certain point, we put a meter on this particular point - that means they will be responsible for the operation and maintenance of the system, " said Dr Janak L Karmacharya, head of the Nepal Electricity Authority (NEA).

BBC: NEWS | South Asia | 'Minigrids' solve South Asia power crisis

Go to a data center and calculate the power required to power the great stuff we are creating.

FORBES: Executive Profiles: Disruptive Tech Leaders In Social Business -- Parker Harris, Salesforce.com

The cool-running, lower-power Barracuda Green hard drive delivers whisper-quiet acoustics and helps reduce system costs associated with the fans and power supply devices often required for power-hungry systems.

ENGADGET: Seagate ships 3.5-inch Barracuda Green internal hard drive, leaves and all