拖到绘图页上，然后将一个线端拖到坐标原点，一个线端拖到部件。

Drag onto the page, then drag one line end to ordinate origin and one to the feature.

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通过拖动可向弧或圆添加尺寸。将线端放在弧中心上，并将黄色的菱形放在弧线上。

Drag to add a dimension to an arc or circle. Place line end at arc center, and yellow diamond on arc.

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电力线的入线端(即建筑物入口端)以及建筑物内随后的各防护区处都应加以防护。

The ac power lines should be protected at the origin (building entry point) and at each of the succeeding protection zones within the building.

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In particular, as advertised, there will be a line and this line will go from 0 to 1 and the left hand side of this line will represent the left wing and the right hand side of the line will represent the right wing, so that's the same as before.

特别是,像刚才说过的,有一条线从0到1,线的左端代表左派,右端代表右派,跟以前一样

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