椭圆形轨道

circular orbit

圆形轨道

oval orbit:椭圆形轨道 | circular orbit:圆形轨道 | 发射台 launch pad

eccentricity

离心率

地球绕行太阳并非圆形轨道,而是类椭圆形, 因此会产生近日与远日点,取其平均距离为1亿五千万公里 天文学称作1au. 1au是指地球距离太阳的平均值约等于1亿5千万公里,而离心率(eccentricity)若等于零即代表圆形轨道(e = 0) .

elliptic orbit

椭圆形轨道

"elliptic neck","椭圆颈" | "elliptic orbit","椭圆形轨道" | "elliptic paraboloid","椭性抛物面"

orbit; elliptic

橢圓形軌道

圆形轨道 orbit; circular | 椭圆形轨道 orbit; elliptic | 双曲线轨道 orbit; hyperbolic

elliptical life raft

椭圆形救生筏

elliptical blade 椭圆叶片 | elliptical life raft 椭圆形救生筏 | elliptical orbit 椭圆轨道

tail

彗尾

但有时因太阳的引力而以椭圆形的轨道在太阳系里漫游. 彗星有三个部分,分别是彗核(Nucleus);彗发(Coma)构成彗星的头部和彗尾(Tail). 彗发(Coma)和彗尾(Tail)运行到太阳附近时,彗星物质受太阳辐射的照射、蒸发与太阳风的吹袭,才形成彗发与彗尾.

It was notable for the fact that it was not moving in an asteroidal ellipse

值得注意的是 它的运行轨道并非星状椭圆形

... by the Spaceguard program.|... 07/4... | It was notable for the fact that it was not moving in an asteroidal ellipse,|值得注意的是 它的运行轨道并非星状椭圆形 | ... but rather, it had a hyperbolic o...

Ontario moonstone：安大略月光石,安大略月长石

onicolo 玛瑙 | Ontario moonstone 安大略月光石,安大略月长石 | onychite 雪花石膏

She is vilified by the press for her controversial view：因她持有异议,新闻界对她横加挞伐

牐12. vilify 诽谤,中伤 | 牐燬he is vilified by the press for her controversial view. 因她持有异议,新闻界对她横加挞伐. | 牐13. decry 责难,诽谤