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barrier methods
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barrier methods
Encyclopedia
医学
外用避孕
释
barrier methods
外用避孕
用物理方法(机械阻挡)不让精子到达子宫腔内,或用化学制剂在阴道内灭活精子,也可两者结合,以此阻挡精、卵相遇而避孕的方法。
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stop and go control system
stop band
stopband
stop-band effect
stop bath
stop codon
stop codon mutation
stope dissolution mining method
stop ending
stope pillar
Stopes, Marie Charlotte
stope survey
stope ventilation
stoping
stoping development
stop line
stop loss
stop-motion animation
stop number
S-topology
stopover site
stopped flow analysis
stopped flow method
stopped flow spectrophotometry
stopped-flow spectrophotometry
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