查询词典 comet

A nonluminous celestial body larger than an asteroid or a comet,illuminated by light from a star,such as the sun,around which it revolves.

行星比一颗小行星或一颗彗星大的不发光的天体，由它绕转的恒星，如太阳的光所照亮在太阳系中有九个已知的行星：水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星

The nucleoid size analysis, the comet assay and quantitative polymerase chain reaction.

细胞核大小分析，慧星检测法，PCR定量法。

Owens et al (1998) found X-ray emission of this comet during that period.

与此同时，Owens et al(1998)观测到这颗彗星的X射线爆发。

The experts said that given the nearly parabolic shape of its orbit, the comet Lulin first visit may also be the last.

专家们表示，鉴于其近抛物形轨道，鹿林彗星的第一次造访也可能是最后一次。

A comet is at perihelion when it is closest to the sun.

彗星最接近太阳时，它就是在近日点。

A comet is at perihelion when it is closest (=very close) to the sun.

彗星最接近太阳时，它就是在近日点。

A comet is at perihelion wh it is closest (=very close) to the sun.

彗星最接近太阳时，它就是在近日点。

The stream in this case is called the Perseid cloud and it stretches along the orbit of the Comet Swift-Tuttle.

流在这种情况下，被称为英仙座云和它延伸沿轨道彗星斯威夫特-塔特尔。

Of course, the meteor was part of the annual rain of dust from periodic Comet Swift-Tuttle known as the Perseid Meteor Shower.

斯威夫特－塔特尔彗星周期性回归后，遗留下的尘埃形成一年一度的流星雨，也就是著名的英仙座流星雨，当然，这颗流星就是其中的一部分。

But throw a stray comet or Planet X into the mix, and our solar system could turn into a catastrophic pinball machine any old time.

但是， 投入的组合流浪彗星或X行星，我们的太阳系可能成为灾难性的弹球机打开任何旧的时间。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。