p-m
英['piː'em]
美['piː'em]
- 永久磁铁
详细释义
名词 pm:
-
an examination and dissection of a dead body to determine cause of death or the changes produced by disease
-
a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
-
the person who holds the position of head of the government in the United Kingdom
-
modulation of the phase of the carrier wave
用法讲解
- p-m s =process-m...
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