The device, which consists of two conductors fastened to the head by a rubber strap, significantly boosted results in a simple arithmetic test, they said.

这些科学家说，这个设备由两块导体组成，由一个橡胶带夹在头两侧，在一次简单的计算测试中能明显的提高成绩。

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Some nights the desire to head north is so strong I want to get out of my sleeping bag, strap on my skis and get going!

有数个夜晚，心中往北走的愿望是如此强烈，我真想爬出睡袋，装上滑雪板，向北出发！

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With a quick movement I slipped my purse over my head, gripping the strap with one hand, ready to surrender it or use it as weapon as need demanded.

我飞快地把钱包越过头取下来，用一只手紧紧地攥着那条皮带，准备把它交出来，或者在必要的时候当成武器用。

youdao

The head strap is near-identical and the same leather-look earcups and gold details have been used (including the gnarled housing on the 3.5mm jack) so that from a quick glance, they almost look the same.

ENGADGET: blogger-avatar

The body harness and head strap had to be as light and unobtrusive as possible too - no mean feat when dogs come in different shapes and sizes, even within breeds.

BBC: Paws 'Dogcam' aids search-and-rescue with canine tech

The head pad is larger and can be moved to better fit your head, the strap can be adjusted at a number of points and the sliders beneath the 0.7-inch OLED monitors can be adjusted independently from one another.

ENGADGET: Sony HMZ-T2 3D display, heads-in (video) HD