meteor stream

同根派生

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(zhì)量天體軌道根數(shù)變化方程的一階和二階解對(duì)15個(gè)流星群軌道半長(zhǎng)軸、近日點(diǎn)距離、軌道周期和近日點(diǎn)經(jīng)度因太陽(yáng)質(zhì)量損失造成的每世紀(jì)的長(zhǎng)期改變效應(yīng)做了數(shù)值計(jì)算，并得出計(jì)算結(jié)果。
The stream takes a sudden bend to the east.
小溪突然轉(zhuǎn)向東流。
He greeted me with a stream of abuse.
他見(jiàn)到我就連聲辱罵。
A meteor suddenly shot across the sky.
一顆流星急速掠過(guò)天空。
He uttered a stream of profanities.
他說(shuō)出了一連串不敬的話(huà)。