All the matter of the galaxy was originally a spherical cloud of gas from which stars were condensing out . 银河系中所有的物质最初都是球状气体云，恒星正是从中凝聚而成。
The motion we observe on this spherical shell does not represent at all the true motion of the celestial bodies . 我们在这个天球上看到的运动完全不能代表天体的真实运动。
An optical shop, in the business of making lenses, will have a set of precision spherical test plates or gauges . 制造透镜的光学车间，应当有一套精确的球面测试板即球面规。
The changes in force application as a spherical particle moves up into the airstream are shown in fig. 2. 123 . 当一个球形的颗粒在气流中向上移动时，其作用力的改变如图2-123所示。
A very small lens aperture is employed to correct spherical aberration, but this severely limits the final resolution . 可以用一个非常小的透镜孔阑来校正球差，但这会严重地影响最终鉴别率。
These have been developed by the numerical integration of the differential equations of gas motion for a spherical blast wave in air . 这些都是根据空中球形爆震波气体运动的微分方程的数值积分得到的。
Until about 1450 spherical trigonometry consisted of loose rules based on greek, hindu and arabic versions . 差不多直到1450年球面三角的内容由一些不严谨的法则组成，这此法则的基础是希腊、印度和阿拉伯译本。
For every large time intervals and for stars near to the pole, it is necessary, however, to use the exact formulae of spherical trignometry . 对于很长的时间间隔和靠近极星的恒星，必须使用精确的球面三角公式。
The spherical particles are swept as droplets or volatilized and recondensed from a meteorite as it is heated to incandescence by friction in the upper atmosphere . 球形粒子是由小滴吹刮或者由在高层大气中被摩擦加热到白炽化的陨石挥发并重新凝结而成。
if we graph in spherical polar coordinates we get surfaces with the familiar figure eight cross section; again, these are graphs and not orbital shapes. 如果我们在球极坐标中作图线，得到熟知的8字形截面；再说一遍，这是图线而不是轨道形状。
