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ài
gen. astatium (At)
chem. astatine
met. astatine (At); eka-iodine (At)
At ài
auto. astatineastatium
第85号元素 ài
gen. astatine
放射元素,治甲状腺机能亢进 ài
repr.biol. astatine
At,85 号元素 ài
agric. astatine
【化】砹 ài
avia. astatine (化学元素,符号 at)
: 6 phrases in 3 subjects
Chemistry1
General3
Technology2