“transition element”的概念、定义、翻译、参考文献-科学参考

单词	transition element
释义	transition element [tran`zish·ǝn ´el·ǝ·mǝnt] ^CHEMISTRY 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. ^{ELECTROMAGNETISM} An element used to couple one type of transmission system to another, as for coupling a coaxial line to a waveguide.
随便看	angle fishplates angle float angle gauge angle gear angle globe valve angle hip tile angle iron angle jamming angle joint angle lacing angle-lighting luminaire angle-measuring equipment angle method of adjustment angle modillion angle modulation angle noise angle of action angle of advance angle of approach angle of arrival angle of attack angle of bite angle of cant angle of clearance angle of climb

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