该方法是以视距尺的定长作基线，利用经纬仪测定基线两端点的竖直角，求出立尺点至测站点间的距离。

This method apply the length of the stadia as base line, survey the vertical angular of the two ends of the base ling by theodolite and get the distance between the station and stadia.

youdao

立管：直径四英尺的钢管(称为“立管”)将船和钻孔连接起来。

Riser pipe: a four-foot-diameter steel pipe called a riser connects the ship to the borehole.

youdao

他有6尺10英寸，但是却只有230磅，波什可以让高大或矮小的对手停立在地板上——因为他的速度和他狡猾的假动作。

At 6-10 and only 230 pounds, Bosh can challenge big and small opponents on both ends of the floor with his quickness and cunning.

youdao