Planet Pluto的意思|示意

Pluto, now classed as a dwarf planet, is so small and so distant that its surface has been a mystery to astronomers.

现在归类于矮行星的冥王星是那么小，那么远，对天文学家来说，其表面一直是个谜。

Clyde Tombaugh, the head of optics at the missile range and the discoverer of the dwarf planet Pluto, took him under his wing and helped him build telescopes from cast-off technology.

第一个发现矮行星冥王星的导弹射程的光学领头人Clyde Tombaugh也将他招致麾下，帮他建望远镜。

The new finding brings renewed attention to Pluto, and to the controversial decision to strip the frigid world of its planet status.

新发现重新引起了高度关注，不仅关注着冥王星，也关注着对该不该夺走他在那冰冷世界里行星地位的争论。

Pluto is now considered a dwarf planet dwelling in the Kuiper belt.

冥王星现在被认定为一颗处于柯伊伯带中的矮行星。

Croswell believes we should define a planet simply - as something that goes around the sun and has the diameter of Pluto or more.

克罗斯维尔认为，我们对行星的定义应当简化，即行星是一种周期性围绕太阳旋转的星体，其直径不应小于冥王星的直径。

The planet Pluto and the moon Triton have almost the same size and density.

冥王星与海卫一几乎同样大小，同样密度。