epoch中文什么意思

n.
1.纪元，时代；时期。
2.值得纪念的事件[日期]。
3.【地质学；地理学】世，纪，期。
+更多解释...4.【物理学】初相；【天文学】历元；【电学】(信号)出现时间，恒定相位延迟。
短语和例子
mark [form] an epoch (in)… (在…上)开辟新纪元。

• alluvial epoch:    冲积期; 冲积世
• baseleveling epoch:    均夷期
• baselevelling epoch:    均夷期

例句与用法

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1. J.h. lambert initiated a new epoch in the theoretical cartography .
   兰伯特在理论制图学方面开创了一个新纪元。
2. The entrance of a grants and crawfords was a favourable epoch .
   格兰特夫妇和克劳福特姐弟的到场是一个有力的转折。
3. Those embedded in gravel or sand would not endure to a distant epoch .
   那些被沙砾所埋藏的，也不能保存到久远时代。
4. All science, logic and mathematics included, is a function of the epoch .
   所有科学，包括逻辑学和数学在内，都是有关时代的函数。
5. We might add a remark about the derivation of the epochs of the sunspot minima and maxima .
   我们不妨谈谈有关太阳黑子极小和极大期的推导。

英文释义

名词

1. a unit of geological time that is a subdivision of a period and is itself divided into ages
2. a period marked by distinctive character or reckoned from a fixed point or event
   同义词：era
3. (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
   同义词：date of reference