他们估计这颗行星的质量大约是地球的5.9到7.5倍。
They estimated the planet's mass as 5.9 to 7.5 times that of Earth.
对进出水中磷质量平衡进行了估计。
你将如何估计一棵树的叶子质量？
空气质量恶劣每年估计还造成了7百万人早死。
Poor air quality is also responsible for an estimated seven million premature deaths every year.
能够估计价值或质量的权威人士。
能够估计价值或质量的权威人士。
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