Gerardus Mercator's projection, published in 1569, was immediately useful because it depicts a line of constant bearing as a straight line, which is handy for Marine navigation.

福西厄斯•墨卡托的投影于1569年问世，马上就派上了用场，因为它把不变的方位描绘为直线，这对航海非常方便。

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In many places cities have been built just above a so-called "malaria line", above which malaria-bearing mosquitoes cannot survive (Nairobi is one example).

在很多地方，很多城市建立在“疟疾线”水平之上——意即可以传播疟疾的蚊子无法生存的水平线上。内罗毕就是个例子(肯尼亚首都：译者注)。

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In this paper, experimental research for feasibility of on-line identification for grinding wheel wear states utilizing grinding spark signal in bearing grinding is presented.

本文对在轴承磨削中利用磨削火花信号实现砂轮磨损状态在线辨识的可行性进行了试验研究。

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If past bipartisan practice is any guide, one or more extraordinary individual in uniform will grace the First Lady's box in the House gallery, perhaps bearing the scars of terrible wounds suffered in the line of duty.

CENTERFORSECURITYPOLICY: Forgetting about the 'Saviors of Our Country'

Bearing in mind that Question Time is a UK wide programme, this is how the line is drawn between those parties which are represented and those which aren't.

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The security line in which I waited for 15 minutes was urgently evacuated by a group of Polizei bearing machine guns, and I had to follow my line-colleauges through a beer garden and a duty-free shop to find another checkpoint with another 15-minute security line.

FORBES: Interlude: Frankfurt International Airport and Feeble Attempts at German