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epoch
B2
noun
사용법:
75%
Era, period
번역: Era, period
발음: /ˈiːpɒk/
뜻: A particular period in history or a person's life, marked by notable events or characteristics.

An epoch means a special time in history or life. It has important events that make it different from other times.

The Victorian epoch was full of change.

He lived in an epoch of great progress.

2
C1
noun
사용법:
60%
Reference time, starting point
번역: Reference time, starting point
발음: /ˈiːpɒk/
뜻: A fixed point in time used as a reference for chronological measurements in science and technology.

In science, an epoch is a time point used to measure time or dates. It helps to start counting time from a clear place.

The GPS system uses an epoch to track time.

Data was recorded from the epoch zero point.

3
C1
noun
사용법:
55%
Geological time, interval
번역: Geological time, interval
발음: /ˈiːpɒk/
뜻: A subdivision of a geological period representing a distinct time interval in Earth's history.

Geologists use epoch to name parts of Earth’s history. Each epoch shows different climates or living things.

Dinosaurs lived in the Jurassic epoch.

The ice age marks a cold epoch in geology.

4
C2
noun
사용법:
40%
Reference date, epoch time
번역: Reference date, epoch time
발음: /ˈiːpɒk/
뜻: In astronomy, a specific date and time when celestial coordinates are defined.

Astronomy uses epoch as a date to fix star or planet locations. It helps scientists measure movement over time.

Astronomers use J2000.0 epoch for star positions.

The planet's location is fixed at this epoch.

5
C1
noun
사용법:
50%
Training cycle, iteration
번역: Training cycle, iteration
발음: /ˈiːpɒk/
뜻: In computing and machine learning, the number of times a learning algorithm has processed the entire training dataset.

In computer learning, an epoch means one complete pass through data. It shows how many times the computer learns from data.

The model improved after ten epochs.

Each epoch processes all training data once.

6
B2
noun
사용법:
65%
Milestone, turning point
번역: Milestone, turning point
발음: /ˈiːpɒk/
뜻: A notable or important event that begins a new period or stage in history or development.

An epoch can be an event that starts a new important time. It changes how people live or think.

The invention was an epoch in technology.

Winning the prize was an epoch for her career.

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