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型变质量天体轨道根数变化方程的一阶和二阶解对15个流星群轨道半长轴、近日点距离、轨道周期和近日点经度因太阳质量损失造成的每世纪的长期改变效应做了数值计算，并得出计算结果。
The stream takes a sudden bend to the east.
小溪突然转向东流。
He greeted me with a stream of abuse.
他见到我就连声辱骂。
A meteor suddenly shot across the sky.
一颗流星急速掠过天空。
He uttered a stream of profanities.
他说出了一连串不敬的话。