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發表於:2017-06-26
Themalespermfertilizesthefemaleegg.Causesofinfertilityarenumerous,rangingfromhormonalimbalances,todefectsoftheuterus,tomisshapensperm,lowspermcountorlowspermmotilityinmen...
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發表於:2023-12-31
1、Relationshipsbetweenserumreproductivehormonelevelsandspermdensity2、Thestudyoftherelationshipbetweenspermnucleoproteintransitionandspermdensityandmotilityinmaleinferti...
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發表於:2017-02-18
ananimaloilfoundintheblubberofthespermwhale.Thespermwhaleisbelievedtodivedeeperthananyothercetacean.Evokingtheposterfortheoriginalsummerblockbuster,anewspeciesofkillerspe...
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發表於:2017-11-28
Ittakesabout175,000spermcellstoweighasmuchasasingleeggcell.TheymistakenlythoughtthatthespermcellcontainedaminiaturepreformedhumanBeingthatgrewwhenitwasdepositedinthefemal...