The Canadian study tested a five-week program that also emphasized sleep restriction, controlling negative thoughts and avoiding stimuli like light and noise in the bedroom.

加拿大的研究测试了一个五周的项目，也是强调睡眠限制，控制负面的想法和避免如卧室内灯光和噪音的刺激。

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Lauder, who has tested out the jetpack twice, said when you're on the ground and preparing for takeoff, there's a lot of vibration and noise.

Lauder已经测试过这种飞行器两次了，认为当你在地上准备起飞时，飞行器会产生巨大的震动和声响。

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This article has put forward the system design plan of virtual noise tested, designing the systematic hardware system and software system of the virtual noise.

该文提出了虚拟噪声测试系统的设计方案，设计了虚拟噪声测试系统的硬件系统与软件系统。

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Apparently in a study done by the Deafness Research UK in conjunction with Dr. Brad Backus of University College London, 14 out of 15 toys tested produced noise levels above the recommended safety limit when held close to the ear. 8 of the 15 were just fine during normal use, but the three worst offenders -- a machine gun, a tommy gun and a cap gun -- are on the "avoid" list.

ENGADGET: Christmas toy noises are/aren't dangerous

The microphone, however, seemed to pick up much more background noise than the Logitech C910 we tested it against here, but we'd say that's likely due their relative locations: top-mounted on the Microsoft, front-mounted on the Logitech.

ENGADGET: Microsoft's 1080p LifeCam Studio review