In allusion to these problems, a plasma sheath model in an oblique magnetic field, which has one dimension coordinate space and three dimensions speed space, has been build.

针对以上问题，我们建立一个一维坐标空间三维速度空间的斜磁场作用下的等离子体鞘层物理模型。

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In space, computers have been used to control the speed and direction of a spaceship.

在太空中，计算机被用来控制宇宙飞船的速度和方向。

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Enormous changes in materials and techniques of construction within the last few generations have made it possible to enclose space with much greater ease and speed and with a minimum of material.

在过去的几代人的时间里，建筑材料和建筑技术发生了巨大变革，使人们能够以最少的材料更加简洁、快速地围砌出建筑空间。

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The team made the discovery by measuring the speed at which our galaxy is moving through space.

VOA: special.2009.01.20

At the time of Endeavour's launch, NASA says the International Space Station was traveling at a speed of about eight kilometers-per-second, above western Romania.

VOA: standard.2010.02.08

VLJs, with a cruise speed of 420 knots and space for up to six passengers.

ECONOMIST: Travelling in an executive jet is just the ticket

The diminutive forward showcased a series of flicks and spins, as well as a speed and willingness to create space.

BBC: Chelsea 1-3 Man Utd

She began to fill her lectures with tales of her out-of-the body experiences, including travelling through space at the speed of light.

ECONOMIST: Obituary