zenith angle distribution

基本解釋

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.
采用單一參考測(cè)量雙向散射分布函數(shù)時(shí)，要求被測(cè)試樣與參考標(biāo)準(zhǔn)的入射天頂角必須相同。
Some results of high energy cosmic ray, such as the zenith angle distribution, the decay length in the air, the energy spectrum and the vertical intensity of hadron and γ-ray have been presented.
由此給出了天頂角分布、大氣中衰減長(zhǎng)度、積分能譜和垂向流強(qiáng)等，為研究宇宙線超高能相互作用提供了信息。