セシウム原子 時計 だろう
seshiumugenshitokeidarō
1. Probably a cesium atomic clock.
Noun
#673653
1. Probably a cesium atomic clock.
1. thermometer
1. alarm clock
2. waking up; keeping oneself awake
3. early-morning treat (traditionally given to children in some parts of Japan); wake-up sweet
1. clock; watch
1. atomic reactor; nuclear reactor
1. wristwatch; watch
1. alarm clock
1. atomic energy; nuclear power
1. cesium (Cs); caesium
1. nucleus; atomic nucleus