The other five objects are all galaxy cores, which to an astronomer is like a smoking gun: ESO 146-IG 005 has been very busy lately, eating other, smaller galaxies.
其他五个有标记的物体都是星系的核心，这些核心对天文学家而言就是一个确切的证据，这个证据显示ESO 146-IG 005星系最近十分繁忙，它正在吞并其他稍小一些的星系。
N fertilization in both plantations significant decreased the biomass of the first five order roots by the method of soil cores in four sampling seasons and two soil depths.
施杀虫剂处理导致两林分四个季节、两个土层中细根生物量显著增加，但是，两树种仅前两级根的生物量显著增加。
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