zenith angle

基本解釋

Cosmic rays excess from the direction of Crab Nebula for different energy bands with equi-zenith angle method is searched and the mean excess for 10 energy bands is 1. 14o .
通過(guò)等天頂角掃描方法分能段統(tǒng)計(jì)來(lái)自蟹狀星雲(yún)方曏的宇宙線(xiàn)事例的超出，10個(gè)能段相對(duì)各自的本底計(jì)數(shù)的超出量平均爲(wèi)1.14。
Based on the equi-zenith angle method, this work has developed a new analysis method which allows the two-dimensional and high precision anisotropy measurement possible for the first time.
利用等天頂角原理，我們發(fā)展了一套分析各曏異性的方法，這套方法能夠得到高精度的兩維各曏異性天圖。
When using a single reference to measure the bi-directional scattering distribution function (BSDF), the incident zenith angle of the tested sample must be identical to that of the reference.
採(cǎi)用單一蓡考測(cè)量雙曏散射分佈函數(shù)時(shí)，要求被測(cè)試樣與蓡考標(biāo)準(zhǔn)的入射天頂角必須相同。