Researchers think it is likely a water world with a solid center.
研究人员认为它可能是一颗有固体中心的水行星。
The spacer ring can be solid or it can have a hole in the center.
隔板可以是实心的。或在其中央有一个孔。
To overcome this solid steel billets were turned in the center lathe.
为了克服这一坚实的钢片被拒绝的中心车床。
To overcome this solid steel billets were turned in the center lathe.
为了克服这一坚实的钢片被拒绝的中心车床。
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