PMS的中文意思、音标与词形变化

[计] 过程监控系统, 计划管理系统 [医] 孕马血清激素

n a syndrome that occurs in many women from 2 to 14 days before the onset of menstruation n an examination and dissection of a dead body to determine cause of death or the changes produced by disease n 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 n the person who holds the position of head of the government in the United Kingdom n modulation of the phase of the carrier wave