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transition element

[træn'zɪʃ(ə)n'elɪmənt]

transition element One of a group of metallic elements in which the members have the filling of the outermost shell to 8 electrons interrupted to bring the penultimate shell from 8 to 18 or 32 electrons; includes elements 21 through 29 (scandium through copper), 39 through 47 (yttrium through silver), 57 through 79 (lanthanum through gold), and all known elements from 89 (actinium) on [træn'zɪʃ(ə)n'elɪmənt]

environ.

过渡元素 (一类金属元素，这些元素最外层的8个电子未填满，导致倒数第二层有8到18或32个电子。这此元素包括21至29号元素(钪至铜)，39至47号元素(钇至银)，57至79号元素(镧至金)，以及89号以后的所有已知的元素。)

transition element

: 9 phrases in 5 subjects

Automobiles	1
Chemistry	2
Electronics	1
Space	3
Technology	2


analyses
met.	分析; 化学成分
plast.	分析
analysis
agric.	解剖
busin.	化验
eng.geol.	研究
environ.	分析
fin.	ABC 分析法，ABC 分类控制法
met.	分解
sport. од.	分析


transition element
environ.	过渡元素
mater.sc.	过滤族元素
met. од.	过渡元素