The main obstacle which prevents the common usage of on-line detecting system is the large quantity of line poles and towers.

现有在线检测系统能否普遍应用的主要障碍是线路杆塔的数量巨大。

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The field is generated in the Earth’s core as it spins, creating a dynamo," and the magnetic poles don’t line up with the Earth’s physical poles.

磁场产生于地球快速旋转的中心，并产生发电。” 而且磁极与地球的物理两级并不在一条直线上。

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Then Schwartz and Snoddy flew the aircraft away from the area to allow the team time to set up the poles and line for the “snatch.”

然后，施瓦茨和斯诺迪驾驶飞机离开那里，让小分队有时间架设起接人用的柱子和绳索。

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They may only add a few million bucks to the top line, but making rods and poles in the same plant helps K2 cut manufacturing costs.

FORBES: Ski, Fish And Pitch

At the Twentieth of November market, she took me to a line of venders who grill to order a portion of the insanely thin sheets of meat that they hang over poles like dishtowels.

NEWYORKER: Land of the Seven Moles