This focusing is the main reason that even relatively weak sounds in the ocean, especially low-frequency ones, can often travel thousands of miles.
正是由于这种集声，即使是海洋中相对微弱的声音，尤其是低频声音，也能传播数千英里。
In other words, TripIt wants to show that it is focusing on the business — and not just the leisure — travel markets.
从另外一个角度来看，这表明TripIt不仅重视休闲旅游市场，而且也关注商务旅游市场。
Common focus point (CFP) migration based on the equal travel-time principle is a kind of pre-stack depth migration method through focusing in both emission and detection.
共聚焦点(CFP)偏移是基于等时原理，通过激发聚焦和检波聚焦的双聚焦实现叠前深度偏移的地震成像方法。
After the journey, Vantone Center will organize exhibitions of photos and travel notes focusing on customers and offer awards to them.
行程归来，万通中心还将推出以客户为主体的摄影作品及旅游札记等展览评奖活动。
The other area is telecommuting, focusing on the effects of telecommunications on travel behavior and residential location choice.
另一个领域是远程通讯，关注的是远程通讯对出行行为和居住区位选择的影响。
Each travel agency offering outbound tourism business shall improve the whole-process management over outbound tourist groups by focusing on the following key aspects.
各出境游组团社要抓住关键环节，认真做好出境游团队的全程管理。
Each travel agency offering outbound tourism business shall improve the whole-process management over outbound tourist groups by focusing on the following key aspects.
各出境游组团社要抓住关键环节，认真做好出境游团队的全程管理。
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