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   Chinese English
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周期〕族
 周期族
tech. periodic family; periodical family
| 平均数
 平均数
econ. average amount
interntl.trade. on the average
math. average number
met. media; medium
sport. average; mean

to phrases
周期族
tech. periodic family; periodical family
周期〕族平: 2 phrases in 2 subjects
Earth sciences1
Metallurgy1