在单位半径的球体中心对球表面上的投影面积所张的角。
The Angle subtended at the center of a sphere by an area on its surface numerically equal to the square of the radius.
如果你愿意，也可以认为，车轮的半径是一个单位长度。
If you want, let's say that we take the unit of length to be the radius of our wheel.
天文学家一般以太阳的半径为基本单位表征恒星的大小。
Astronomers generally measure the size of stars in terms of the radius of our sun.
在一般情况下，库仑定律是电荷的产物，和q2之间的距离就是半径r，q1q2，divided，by，their，separation，，which，is，r。,为了使最后算出的合理的静电单位和力学单位,我们需要在这儿引入一个常数。
So, in the most general form, Coulomb's law is the product of the charge, q1 And, in order to rationalize electrostatic units with mechanical units, we have to put a factor in here.
这项能力拥有巨大的影响半径，可以使所有在影响半径范围内的敌对单位互相攻击，自相残杀。
This ability has a huge radius, and makes all opposing units in that radius attack each other before they attack any of your units.
经过加工，一对夫妇的通行证上一块石头或一块细砂纸在平面上删除加工商标，并允许部分顺利过渡到由单位双方的半径。
After machining, a couple of passes on a stone or piece of fine sandpaper on a flat surface remove the machining marks and allow the part to transition smoothly from flat sides into the radius.
与调整座椅表面半径对齐洗衣机也可用于设计和易于安装单位对房屋的肩膀。
Aligning seat washers with an aligning surface radius are also available for ease of design and mounting against a flat housing shoulder.
一个天文单位等于地球轨道的平均半径，大约是93，000，000英里。
One astronomical unit is equal to the average radius of the Earth's orBit, aBout 93, 000, 000 miles.
粒子半径的单位是微米，微米这个单位尤其普通和有用。
The particle radius unit, the micron, is especially common and useful.
本文在计算恒温下蒸发球形试样粒子时，发现每单位时间蒸发缩小的半径相等。
By the calculation it is found that the decreasing radius is all the same for different particle radius at per unit time when the spherical sample particle is evaporated.
透镜曲率半径随单位面积输入能量增加而减小。
The lens radius of curvature could be minished with the laser output enhanced.
最大气泡，以像素为单位的最大半径。
最大气泡，以像素为单位的最大半径。
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