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总放射性
tech. gross activity; gross radioactivity
总 α-放射性
water.res., ecol. total α-radioactive
总放射性[活度]【核】
el. total activity
总 β-放射性
water.res., ecol. total β-radioactive
总 α- 放 射性
: 10 phrases in 7 subjects
Business1
China1
Ecology1
Electronics4
Nuclear physics1
Technology1
United Nations1