Improving the accuracy of vehicle's strap-down north finder is a hot topic and difficult problem.

提高车载环境下寻北仪的精度是目前的一个热点和难点问题。

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If you come by bike, go down north street and turn left at the second crossing. It will take you 15 minutes' ride altogether. 15-minute ride.

骑车沿北大街往北，在第二个十字路口向左转，十五分钟就能到达。

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Introduces the principle of strap down north finder and studies the question of improving the precision of north finder when under a random disturbance.

介绍捷联式寻北仪的工作原理，研究当车体受到随机干扰时如何提高寻北仪的寻北精度问题。

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Paul Bunyan was a hero of North America's lumberjacks, the workers who cut down trees.

VOA: special.2011.05.07

Usually, the picture is that they are coming from the north or the northeast and pressing down into it.

他们通常来自于北方,或者东北,使用武力手段进入了迈锡尼

耶鲁公开课 - 古希腊历史简介课程节选

So, I grew up in the South and spent most of my time down in North Carolina.

我在南边儿长大的，但是我大多数时间是在北卡罗莱纳州度过的。

选康内尔大学的理由 - SpeakingMax英语口语达人

But sales are down north, south, east, and west.

NPR: Marketplace Report: Housing Market Cooling Down

On November 9th the Pentagon said the remains of an American airman shot down over North Vietnam had been identified.

ECONOMIST: Vietnam and America

The world tour, which runs until 2008, will touch down in North America, Europe, Latin America, Japan, Australia and New Zealand.

BBC: NEWS | Entertainment | Reunited Police start world tour