The roots go a long way down .

根扎入地下很深。

Lasers can burn holes in a steel plate 0.25 inch thick at a distance of several feet .

激光在数英尺远处能在 0.25 英寸厚的钢板上烧出孔来。

The holes are evenly spaced .

这些孔的孔距均等。

To obtain continuous rotation , as in gears , a number of equally spaced involutes would be required on each basic circle .

为了获得齿轮中那样的连续转动，在每个基圆上需要有许多等间距的渐开线。

Expansion joints may be spaced at regular intervals of up to 70 metres .

可能每隔 70 米才留出伸缩接缝的空隙。

The planets are spaced at smoothly increasing distances from the sun .

各行星彼此相隔的距离，随着它们离太阳的距离而依次增大。

It extends(for) 10km north and south .

它南北延展达 10 公里。

A lever can move a load for only short distances .

杠杆只能将载荷移动很短的距离。

Feed is the distance the point of the tool moves longitudinally along the bed with each revolution of the lathe .

走刀量是车床每转一转刀具的刀尖沿床身纵向移动的距离。

The two points are 50 meters apart .

这两点相隔 50 米。

These antennas are placed some distance apart .

这些天线隔开一定的距离。

In a three-phase alternator the voltage waves of the different phases are 120 electrical degrees apart .

在三相交流发电机中，不同相的电压波彼此相隔 120 电角度。

The nearest star is 1014km away .

最近的恒星有 1014 公里远。

Mars is 15.2 astronomical units away from the sun .

火星离太阳的距离为 15.2 天文单位。

Uranus is about 2,686,847,000 km from the sun .

天王星离太阳的距离为 2 686 847 000 公里。

Neptune is 30 times farther from the sun than is the earth .

海王星离太阳的距离为地球到太阳的距离的 30 倍。

A one-way distance to the moon or back is about 80 times as far as Columbus had to travel on his voyage from Spain to the West Indies .

去月球的单程距离或由月球返回地球的距离，约为哥伦布由西班牙航海到西印度群岛所需航行的距离的 80 倍远。

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