ground incidence 中文意思是什麼
ground incidence
解釋
地面角-
The notable torsion effects of the surface ground motion above the alluvial valley are illustrated and the torsion effects become stronger as the frequency of the incidence is higher. ( 4 ) antiplane surface motion of the underground circular soft inclusion and the underground homogeneous soft interlayer is investigated in this paper. the results indicate : surface displacement amplitudes just above the soft inclusion of small depth - to - width ratio is amplified and soft interlayer of small depth - to - thickness ratio is amplified to a certain degree, and moreover, the latter is lower limit of the former
結果表明：垂直入射時，小深寬比軟夾塞上方地表位移幅值有較大的放大，小深厚比軟夾層的地表位移幅值也有一定的放大，且後者為前者的下限；波接近掠入射時，軟夾塞正上方地表點和軟夾層的中國地震局工程力學研究所碩士學位論文一地表位移幅值都沒有放大，而軟夾塞迎波面一側地表點的位移幅值會有一定的放大；軟夾塞上方的地表位移運動有較強烈的扭轉效應，且此扭轉效應隨入射波頻率的增高而增強。 -
Under the low temperature, the in - crease of indoor activity would make the opportunity. the rat will move to resident for the sake of lacking food that benefited the spread of virus between the rat, and cause easily epidemic situation breaking out. the ground temperature was negative correlation to the incidence of endemic typhus
在低溫條件下，人群的室內活動增多，加上室內門戶密閉、通風不暢，容易增加呼吸道傳染病的感染機會;環境溫度過低，野外沒有水和食物可尋，鼠就要向居民區遷移，致使室內鼠密度增高，有利於病毒在鼠間傳播，容易引起人間疫情爆發流行。
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