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单词 expansion age
释义
expansion age
  • 简明释义
  • 膨胀(年)龄 星协,总星系
  • 网络释义
  • 1

    ?膨胀龄

    膨胀什么意思_有道词典 ... 膨胀裂缝 expansion fissure; 膨胀(年)龄 expansion age; 膨胀炉 expansion furnace; ...

短语
  • 双语例句
  • 1
    This paper investigated expansion property that common Portland cement was as basic body and cement Q phase - C2S - C4AF - C12A7 as expansion age nt with a little addition of gypsum.
    采用普通硅酸盐水泥作为基体、Q相- C2S - C4AF - C 12a7水泥作为膨胀剂、加入少量石膏的条件下进行试验研究。
  • 2
    Note that the present age of the universe follows from the expansion history and present expansion rate.
    请注意,目前的宇宙年龄是由宇宙当前的膨胀速率所估计的。
  • 3
    Keck is helping astronomers determine the age of the universe and its expansion rate as well as allowing them to watch the birth of stars in other galaxies.
    凯克能帮助天文学家探测宇宙的年龄和膨胀的速度,并观测其他星系中恒星的诞生。
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更新时间:2025/8/22 12:55:34