But they all have differing efficiencies and operating requirements.

不过它们的效率和操作要求都不一样。

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Thanks to the advanced energy-saving hydraulic model, it is featured by high efficiency and wide performance range to better meet the operating requirements of users.

该系列泵由于采用了高效节能的优秀水力模型，因此具有效率高，性能范围广等优点，更好地满足了用户的使用要求。

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The actual observing and surveying result indicates that this controlling net can accurately reflect the operating state of dam and satisfy the need of operating requirements.

实际观测结果说明，该控制网能够准确反映大坝运行状态，满足工程安全运行需要。

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The review recommended aggressive new operating standards and requirements for offshore energy companies, which we will put in place.

WHITEHOUSE: A Full and Vigorous Accounting of the BP Oil Spill

Its initial recommendations include aggressive new operating standards and requirements for offshore energy companies, which we will put in place.

WHITEHOUSE: Deepwater BP Oil Spill: Presidential Press Conference

Also, considering the speed of evolution of mobile device features and operating systems, evolving field requirements, ongoing maintenance of multiple platforms can cost multiple times the initial development budget over a five-year period.

FORBES: A Five-Point Checklist For CIOs Looking For A Mobile App