核自旋

核自旋	hé zì xuán	nuclear spin
核	hé	pit / stone / nucleus / nuclear / to examine / to check / to verify
核	hé	variant of 核 / to investigate
自	zì	(bound form) self; oneself / from; since / naturally; as a matter of course
自旋	zì xuán	(physics) spin (of a particle)
旋	xuán	to revolve / a loop / a circle
旋	xuàn	to whirl / immediately / variant of 镟