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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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methanol chemical industry
methanol maser
methanol poisoning
methanol reforming
methanol synthesis
methanol to aromatics
methanol to olefin products
methanol to olefin/propylene(MTO/MTP)
methanol to olefins
methanol to olefin technology
methanol to propylene
methanotroph
methanotrophs
methanotrophy
methaqualone
methaqualone; hyptor; ortonal; melsedin; parminal
methasulfocarb
methemoglobin
methemoglobinemia
methenylation
methicillin-resistant Staphylococcus aureus,MRSA
methioine
methionine
methionine restriction
method
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