A series of sufficient conditions to guarantee the existence of front wave solutions are obtained.

在各种条件下，得到一系列保证波前解存在的充分条件。

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I practiced my speech in front of a video monitor, did a walk-through of how it would be staged, received instruction on where to stand, where to wave, and how to best use the microphones.

我在视频监视器前面练习我的演讲，做了一个初排，分析该怎么样开场，被指导该站在哪里，该在哪里挥手和最佳的使用话筒的方法。

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The precedence effect (or "law of first wave front") is our brain's ability to determine the location of sounds amidst conflicting signals based on the direction of the first waves of sound.

优先权效果(或者“第一声波靠前定律”)是我们的大脑基于第一声波位置在相互冲突的各种信号中判定声音位置的能力。

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The story talks about how FAs are trying to get in front of the wave of individual investors jettisoning brokers in favor of self-directed investing by encouraging their clients to become more involved in the investing process.

FORBES: Brokers Now Desperately Seeking Hands-On Investors

He saw a man being knocked down, by the wave in front of him.

CNN: Tsunami tragedy: Your e-mails

They are out in front of the mobile wave described in my earlier interview with MicroStrategy CEO Michael Saylor.

FORBES: Follow the 'Flipped Classroom' Model in Business Presentations