To satisfy the requirement of high performance signal processing technique, it is demanded to use the direct sampling of IF signal to get quadrature signals.

为满足高性能信号处理技术要求，需要直接对中频信号进行采样来得到正交双路信号。

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The direct factor that influences the resident electric power consumption mainly consists of requirement factor, economic factor and service factor.

影响居民电能消费的直接因素主要有需求因素、经济因素和服务因素。

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A direct sequence spread spectrum (DSSS) receiver has strict requirement on local carrier's synchronization, and always needs complex circuits.

直接序列扩频接收机对本地载波的同步要求非常严格，以往所需电路复杂。

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Clients need to determine set metrics (economic, operational and service) with direct linkage to specific mission requirement(s).

FORBES: Implementation of Cloud Computing Solutions in Federal Agencies : Part 3 - Cloud Transition Lessons Learned

The requirement, as he discussed, of taking some direct military action in order to effectively implement a no-fly zone is pretty clear.

WHITEHOUSE: Press Briefing

But while direct experience often affords the best view of artwork, by no means are plane tickets a requirement, since the world can also be traveled on the web.

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