secular variable 中文意思是什麼
secular variable
解釋
長期變星-
The secular influence of solar mass - loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper
摘要將作者在變質量天體力學所得理論結果應用於太陽質量損失對流星群軌道根數變化的長期效應上。 -
The numerical computation for the secular variable of the semi - major axis, solar distance at perihelion, orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of gylden - meshcherckii equations
利用g - m型變質量天體軌道根數變化方程的一階和二階解對15個流星群軌道半長軸、近日點距離、軌道周期和近日點經度因太陽質量損失造成的每世紀的長期改變效應做了數值計算,並得出計算結果。 -
Secular trend is the value of the variable that tends to increase or decrease over a long period of time.
長期趨勢指的是在一個長時期內趨向增加或減少的變量的值。
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