unit (magnetic) pole
英
美
-
名词 unit:
-
any division of quantity accepted as a standard of measurement or exchange
-
an individual or group or structure or other entity regarded as a structural or functional constituent of a whole
-
an organization regarded as part of a larger social group
-
a single undivided whole
-
a single undivided natural thing occurring in the composition of something else
-
an assemblage of parts that is regarded as a single entity
-