epoch

a long period of time in history or in a person's life, especially one that is important or remarkable; an era

1. 1.

   A particular period of history, or of a person's life, especially one considered noteworthy or remarkable.

2. 2.

   An intensive chemotherapy regimen for treating aggressive non-Hodgkin lymphoma, consisting of etoposide, prednisolone, Oncovin (vincristine), cyclophosphamide, and hydroxydaunorubicin.

   由依托泊苷、泼尼松龙、长春新碱(Oncovin)、环磷酰胺和羟基柔红霉素组成的强化化疗方案,用于治疗侵袭性非霍奇金淋巴瘤。

3. 3.

   a period marked by distinctive character or reckoned from a fixed point or event

   时代；纪元

4. 4.

   A notable event which marks the beginning of such a period.

5. 5.

   (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded

   (天文学)历元(任意固定的参考日期)

6. 6.

   A specific instant in time, chosen as the point of reference or zero value of a system that involves identifying instants of time.

7. 7.

   a unit of geological time that is a subdivision of a period and is itself divided into ages

   地质年代单位(纪的细分,再分为世)

8. 8.

   A geochronologic unit of hundreds of thousands to millions of years; a subdivision of a period, and subdivided into ages (or sometimes subepochs).

9. 9.

   One complete presentation of the training data set to an iterative machine learning algorithm.

划时代的事件；新纪元的开端；世（地质年代单位）；一轮；一代（机器学习）；历元；基准时刻；EPOCH方案（一种化疗方案）

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