Synchronization is one of the most crucial techniques in OFDM.

同步技术是OFDM的关键技术之一。

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User modeling is one of the crucial techniques of personalized information service.

用户兴趣建模是互联网个性化信息服务的关键技术。

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The roadway excavation and supporting are crucial techniques in mining engineering.

巷道掘进与支护是采矿工程的技术关键。

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AIDS. Besides such basic medical tests, however, most of the company's screening techniques are aimed at capturing one crucial trait: whether the individual will fight back.

ECONOMIST: Taking a risk

The administration's enthusiasm for such interrogation techniques as simulated drowning, which yielded little or no crucial new intelligence, according to Mr Bergen, was another.

ECONOMIST: The war on terror

Especially because President Obama has barred enhanced-interrogation techniques, such long-term psychological pressure can be crucial to learning if the brothers worked with anyone else, if they received terrorist training, and more.

WSJ: Review & Outlook: Enemy Combatants in Boston