m-shell

/em-shel/US // ˈɛmˌʃɛl //

壳,壳子,壳类,壳的

Definitions

n.名词 noun

1
Physics.
- : the third shell of electrons surrounding the nucleus of an atom and containing, when filled, 18 electrons having principal quantum number three.

Their friends noticed, and asked Sabrine to talk to him to bring him out of his shell a little.
“I´m now writing to you from goat heaven,” he lamented on the blog he maintains.
Or fast-fashion chains like Zara and H&M churning out runway imitations.
The World of Ice Fire: The Untold History of Westeros and The Game of ThronesGeorge R.R. Martin, Elio M. Garcia Jr.
A third cabinet member used public funds to pay in an S & M bar.
M was a Miser, and hoarded up gold; N was a Nobleman, gallant and bold.
The living (value £250) is in the gift of trustees, and is now held by the Rev. M. Parker, Vicar.
“I hope he will grow up to be a true comfort to you, M. Pujol,” said Miss Janet.
That of M. Charles Guenllette is the authority followed here.
Off flew the shell, seven miles it flew; over the Turkish Army from one sea into another.