Seen here on June 13th from southern New Mexico, this Comet McNaught's long ion tail sweeps across the telescopic field of view (a negative image is inset).
这是6月13日新墨西哥南部所见，麦克·诺特的长离子尾扫过望远镜的视野，插图是负片。
Comet Hale-Bopp has been spotted beyond the orbit of Neptune, far enough from the sun to be without its dirty tail. John Matson reports.
海尔波普彗星在位于海王星轨道上方出现，因其与太阳之间距离足够远，所以并未出现脏尾。-约翰·迈特森报道。
The red circle is the orbit of a long period object like a comet. Note the object and its tail.
红色的圈是一个类似彗星的长周期天体的轨道，注意一下这个天体和它的尾巴。
The tail lengths of comet were used to measure DNA damage.
以彗星尾长作为DNA损伤程度的评价指标。
Holding in the palm cool cool, it soon melted, as if the night of the meteor, holding a beautiful comet tail and disappeared in the distant galaxy.
捧在掌心凉爽爽，旋即便融化了，仿佛夜晚的流星，托着美丽的慧尾，消失在遥远的银河。
The tail of a comet, a kite, an aircraft, a procession.
彗星、风筝、飞机、行列的尾部。
The fan-shaped region that stretches upward from Johnson's nucleus (yellow ball in the middle) represents the dust "tail" of the comet.
从Johnson彗星的彗核（照片中部的黄色球体）向上延展的扇状区域描绘出了这颗彗星的尘埃“尾”。
But in Pierre's heart that bright comet, with its long, luminous tail, aroused no feeling of dread.
但是皮埃尔心中这颗拖着长尾巴的璀璨的彗星并没有引起任何恐怖感。
The annual April Lyrids are only visible as the Earth passes through the tail of the Thatcher comet towards the end of the month, with the bright streaks of lights being particles from that comet.
每年四月的天琴座流星雨只有该月末地球穿过撒切尔彗星的尾部时才能看到，来自彗星的碎片会化作道道流光。
Comet Hale -bopp has been spotted beyond the orbit of Neptune, far enough from the sun to be without its dirty tail. John Matson reports.
海尔·波普彗星在位于海王星轨道上方出现，因其与太阳之间距离足够远，所以并未出现脏尾。
Thee annual April Lyrids are only visible as the Earth passes through the tail of the Thatcher Comet towards the end of the month, with the bright streaks of lights being particles from that comet.
每年四月的天琴座流星雨只有该月末地球穿过撒切尔彗星的尾部时才能看到，来自彗星的碎片会化作道道流光。 。
The tail lengths of comet cell of all organs in group treated with high fluoride were increased compared with that of control group (P< 0.05).
高氟组的甲状腺、肝、肾和肺组织的细胞拖尾率反比低碘组的拖尾率有不同程度的降低（P>0.05）。
The tail lengths of comet cell of all organs in group treated with high fluoride were increased compared with that of control group (P< 0.05).
高氟组的甲状腺、肝、肾和肺组织的细胞拖尾率反比低碘组的拖尾率有不同程度的降低（P>0.05）。
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