This distance is known as the 'astronomical unit' or AU.
这个距离被称为“天文单位”或 AU。
An astronomical unit is the distance between Earth and our sun.
一个天文单位是地球与太阳之间的距离。
One astronomical unit is the distance between the Earth and the sun.
一个天文单位等于地球到太阳之间的距离。
Now that is a fairly short distance when you are talking the length and breadth of Europe, so perhaps a better unit of measurement might be a thousand paces.
相对于广袤的欧陆，这一步微不足道，所以用一千步作为长度单位或许更加适宜。
Most planet-formation models predict a “planet desert” within one astronomical unit (or the average distance from the Earth to the sun) of a host star.
大多数行星形成模型预言在主恒星一个天文单位（或从地球到太阳的平均距离）以内会有一个“沙漠之星”。
For much the same reason that so many of our words have Latin roots, the word "mile" was used for a unit of distance in many languages throughout Europe.
我们许多英语单词都扎根于拉丁语，同样，mile也曾是欧洲许多语言中的一个长度单位。
Their short-distance radios relay information to each other in a web and pass it to a satellite unit at the edge that feeds into the National Interagency Fire Center’s network.
网点的短距离无线电能在一个网络内彼此中转信息，然后把它传送给设在森林边缘的卫星装置，再由卫星装置发送到美国国家跨部会消防中心的网络。
One astronomical unit is the distance between the Earth and the sun, about 93 million miles (150 million km).
一个天文单位是地球与太阳的距离，大约9300万英里(1.5亿公里)。
You can prevent this by making sure the scale (how many pixels correspond to each projected unit of distance) is the same (or close) in both the x and y directions.
您可以通过保证范围（每个投影长度单元对应多少像素）在x和y方向上相同（或接近）来防止这种情况发生。
To measure astronomic distances one takes as a unit that distance which light travels in a year.
为了度量天文距离，人们把光在一年中走过的距离当作一个距离单位。
A unit of angular distance equal to one thousandth of a milliradian.
角距离单位等于(待查表)毫弧。
No one would say that. A light year is a unit of distance not time.
没有人会那么说，一光年是距离单位不是时间单位。
Actually, in terms of distance per unit energy, flying is pretty efficient.
按照单位距离来看的话，飞行是非常顺利的。
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。
Through making sure of detecting air attack weapon distance, enter direction by radar, projective shortcut of firepower unit fairway, the air defense situation was simulated.
通过对雷达发现空袭兵器距离、空袭兵器进入方向、火力单元航路投影捷径的确定来对空情进行模拟。
At the same time the ALJ unit will launch similar laser beam to the fake targets some distance away from the protected targets.
同时主动激光干扰(alj)单位将会发射相似的光束到距防护目标一定距离的假目标上。
Unit will attack any enemy it comes into contact with, but will only pursue it a short distance.
被设置成该姿态的单位接触敌人后立即攻击，但只会在一定范围内追击。
Based on the safety distance model, the software and hardware of the main control unit of sub-system and radar ranging of sub-system is designed, the key technologies is solved.
在安全距离的基础上，对主控单元子系统和雷达测距子系统进行了软、硬件设计，解决了系统功能所需要的关键技术。
The teaching of taking course as unit is the basic teaching form of distance education.
以课程为单元组织教学是远程教育的基本教学形式。
The system can simulate the executive process of nc programme files, and realize the simulation of speed and acceleration curve, and process time and distance with the unit of controlling period.
该仿真系统不仅可以用于仿真NC程序文件的执行过程，而且实现了以控制周期为单位，对速度、加速度曲线以及加工时间、加工距离的仿真。
Know astronomical unit and light year are used for expressing the distance between celestial bodies.
知道天文单位和光年是用来丈量天体之间距离的单位。
The results show that the wear resistance changes with the variety of shapes and distributing distance of the non-smooth unit.
非光滑试样的耐磨性随单元体分布间隔的减小而提高。
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。
They are the changing values of vertical velocity per unit distance along the horizonal direction on the sur-facial deformation field in which crustal vertical movement is dominant.
它是指在由发震构造引起的垂直运动为主的地表形变场中，水平方向上单位距离内垂向速率变化的物理量。
Thee product provides standard vehicle tracking data, including journey start and end, interval reports, speed, direction and distance, plus tamper alerting to indicate if the unit has been removed.
该产品可以提供标准的车辆追踪数据，包括旅程开始和结束点，间隔报告，速度，方向和距离，如果该装置被移除防篡改报警便会响起。
Curves of total vaporization rate of fuel and vaporization rate per unit length as functions of the axial distance of combustor for given rocket engine are also presented.
文中还给出了燃料总蒸发速率和单位长度上的蒸发速率随该发动机燃烧室轴向距离变化的曲线。
During the bending processing, the bending buffer distance piece (42) can easily realize the bending and greatly ensures the performance of the core unit.
在弯曲处理过程中，弯曲缓冲间隔件(42)使弯曲容易进行并且极大地保证了芯单元的性能。
During the bending processing, the bending buffer distance piece (42) can easily realize the bending and greatly ensures the performance of the core unit.
在弯曲处理过程中，弯曲缓冲间隔件(42)使弯曲容易进行并且极大地保证了芯单元的性能。
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