light-time for astronomical unit distance
天文单位距离的光行时
a unit of angular distance equal to 60 degrees.
等于度的角距离单位。
distance travelled per unit time.
单位时间内形成的距离。
range-range positioning
圆-圆定位，距离-距离定位
The distance from the sun to earth is one astronomical unit.
太阳到地球的距离即为一个天文单位，
a unit of angular distance equal to a 60th of a degree.
角距离单位等于一度的（待查表）。
a unit of angular distance equal to one thousandth of a milliradian.
角距离单位等于（待查表）毫
a unit of angular distance equal to one thousandth of a radian.
角距离单位相当于（待查表）弧度。
Chinese distance measure; approximately 0.5 kilometers.
中国的距离单位，约合（待查表）公里。
a linear unit used for astronomical distances.
用来表示天文学距离的长度单位。
One astronomical unit equals the distance from the earth to the sun.
一天文单位等于从地球到太阳的距离。
The Design and Implementation of a Remote Water-Level Intelligent Monitoring System;
一种远距离水位单片机智能监控系统
Distance between Unit Balls in l_p~n-Space and Its Application
l_p~n空间中单位球的距离及其应用
a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers).
用来计算太阳系内距离的单位；等于地球到太阳的平均距离。
A unit for measuring distance, equal to! /8 mile(201 meters).
浪，弗隆测量距离的单位，等于！／8英里（201米）
Such beds should reduce travelling distance per acre.
这种带状栽植能减少单位面积的周转距离。
Two factors, force and distance, are included in the units of work .
力和距离两个因素都包含在功的单位内。
a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years.
测量恒星距离的天文学长度单位；一秒差距等于三十万亿公里。