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- Additionaly, the effect of the obscuration ratio on the tilt and astigmatism along Seidel aberrations is less than that on the coma, focus and spherical terms. 此外，遮拦比对赛德尔系数中畸变、像散的影响较弱，对彗差、场曲、球差的影响较强。
- The effect of obscuring ratio on the beam spreading was analyzed.The results show that the obscuring ratio has obvious influence on the beam spreading in weak turbulence. 结果表明，对于均强聚焦光束湍流大气传输，在弱湍流效应条件下，光斑扩展受遮拦比影响较大；
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- obscuration ratio 遮拦比
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- The ratio of men to women was two to one. 男女的比例是二比一。
- Deal with the causes of obscuration, not with the sun. （比如眼翳）需要治理的是障碍的成因，而非太阳。
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- The period of time during which such an obscuration occurs. 这种天体变暗发生的时间。
- The strike is the ultima ratio of Trade Unionism. 罢工是工联主义的最后手段。
- The cross ratio he called anharmonic ratio. 他把交比叫作非调和比。
- Center obscur is avoided and wide field of view is realized. 采用共轴系统设计、离轴视场使用的成像方式,避开了中心遮光,实现了大视场。
- The ratio between the two sides is one to four. 双方人数对比是一对四。
- Subsistence only increases in an arithmetic ratio. 生活资料只能按算术级数增长。
- This is the prime ratio of the nascent increments. 这是最初增量的最初比。
- Scientists are trying to increase that ratio. 科学家正设法增加这个比率。
- Population can increase in a geometric ratio. 人口可以按几何级数增长。
