第八章人的生殖和发育

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不排除由于是进行产品质量评审时,在项目的设置、抽样方法与质量检验的严谨程度上,都尚存在一定的问题;所以产品评审的过程需要进一步改进;以便更真实地反映情况出产品的真实问题;从而更全面、更本质地反映产品质量存在的问题与真实水平centerpinchecksandanchoringtheinnercylinder.AccordingtoWhilecouplingalignmentshouldkeepoiloutofcavityandlocatetherotoraxisneckraisedarewithintheprescribedlimits,thereshouldbenogaps,Horn,HornandHorn0.05mmfeelergaugesfitinto.Centercoupling,condenserwaterfillingandwater-filledaccordingtofactoryrequirement.ForcouplingthreesupportedrotorCenter,themouthunderthecouplingbetweenthevalueshouldbeasstipulatedinthemanufacturer,usually0.15~0.25mm.Inthecaseofcouplingconnection,ifpossible,liftingonlyonebearingendofthesupportbearingoftherotor,removethebearing,fittedwithspecialtilesandspecialliftingtools,discrotors,checkthejournalfluttertile,shouldgenerallybelessthan0.10MM.Whenthecouplingsandrotorcomeswhenthereisaconflict,thecouplingCentreshallprevail.6.4.5.2.2shaftlookingfor:...6.4.5.3.Provisionalboltconfirmedthepositioningoftherotorsize,aswellasthecouplingbetweentheadjustmentshimthicknessaccuracy,drawingstomeetthetechnicalrequirements.Plane,cylindricalandcleanthecouplingboltholesshouldbecleanandwithoutburrs,scrapironandgrease-free,relativepositionofthecouplingaccordingtothedrawingrequirementsare.Couplingtopscrews,rounddistanceapart,indicatorstomonitormovementoftheaircraft,itsvalueisallowedtopassthevalueaxismoving,mountedadjustmentpads,notepadsinstallationdirectionguidepincouplingwithprocessendclosed.Thebackwheelsslowlytightened,when2mmorso,withstandardwhitebarswheretwobackwheelboltholemeasurementaboveandbelow,confirmtwobackwheelboltholeconcentricity.Then,thesymmetricalhorizontalmounttwotemporaryboltstightened,attentiontomonitordialindicator,theninstallthesymmetricaltemporarybolts,thistimesitesslowlymovingrotor,inthemeasuredcircumferenceof8equalpartsbackwheelrimrock,eachmeasuringrelativechangesinvalueshouldbelessthan0.02mm.6.4.5.4couplingreamedandpairedboltreamingdiereamer,adjustablereamers,boringmill,inseveralways.6.4.5.4.1Generalrequirementsbeforereamingorboring,第八章人的生殖和发育1、人的生殖1)概念:产生生殖细胞,繁殖新个体的过程,也是种族延续的过程。2)男性生殖系统的结构和功能:睾丸:产生精子和分泌雄性激素内生殖器附睾:贮存和输送精子输精管:输送精子精囊腺和前列腺:分泌黏液外生殖器阴囊:保护睾丸阴茎:排精、排尿⑶女性生殖系统的结构和功能:卵巢:产生卵细胞和分泌雌性激素内生殖器输卵管:输送卵细胞,受精的场所子宫:胚胎发育的场所阴道:月经流出,胎儿产出的通道外生殖器:即外阴睾丸和卵巢分别是男女的主要生殖器........官.。2、睾丸分泌的雄性激素能刺激男性相关器官的发育和维持男性特征;卵巢分泌的雌性激素能刺激女性相关器官的发育、维持女性特征。3、胚胎的发育和营养:分娩:胎儿发育成熟后,通过母体的阴道产出的过程。发育:受精卵胚胎胎儿婴儿营养:胚胎发育初期所需要的营养来自卵黄;胚胎在子宫里的发育所需要的营养通过胎盘从母体获得。4、睾丸产生的精子和卵巢产生的卵子都是人的生殖细胞。5、卵子和精子结合的过程,叫做受精作用。由卵子和精子结合的细胞叫做受精卵,受精卵形成的场所是输卵管。6、胎儿通过胎盘从母体吸取氧气和养料,排出CO2等代谢废物。人的生长发育从受精卵开始,直到个体发育成熟。7、青春期发育:形态特点:身高、体重迅速增长大脑功能特点心脏结构、功能完善化肺功能性器官的发育:性发育和性成熟是青春期发育的突出特征性发育主要受到促性腺激素和性激素的调节第二性征的发育:除性器官以外的男女性各自所特有的征象,主要受到性激素的调节,男性如胡须生长、喉结突出、声音变粗、声调较低等;女性如乳房发育、声音变细、声调较高等。不排除由于是进行产品质量评审时,在项目的设置、抽样方法与质量检验的严谨程度上,都尚存在一定的问题;所以产品评审的过程需要进一步改进;以便更真实地反映情况出产品的真实问题;从而更全面、更本质地反映产品质量存在的问题与真实水平centerpinchecksandanchoringtheinnercylinder.AccordingtoWhilecouplingalignmentshouldkeepoiloutofcavityandlocatetherotoraxisneckraisedarewithintheprescribedlimits,thereshouldbenogaps,Horn,HornandHorn0.05mmfeelergaugesfitinto.Centercoupling,condenserwaterfillingandwater-filledaccordingtofactoryrequirement.ForcouplingthreesupportedrotorCenter,themouthunderthecouplingbetweenthevalueshouldbeasstipulatedinthemanufacturer,usually0.15~0.25mm.Inthecaseofcouplingconnection,ifpossible,liftingonlyonebearingendofthesupportbearingoftherotor,removethebearing,fittedwithspecialtilesandspecialliftingtools,discrotors,checkthejournalfluttertile,shouldgenerallybelessthan0.10MM.Whenthecouplingsandrotorcomeswhenthereisaconflict,thecouplingCentreshallprevail.6.4.5.2.2shaftlookingfor:...6.4.5.3.Provisionalboltconfirmedthepositioningoftherotorsize,aswellasthecouplingbetweentheadjustmentshimthicknessaccuracy,drawingstomeetthetechnicalrequirements.Plane,cylindricalandcleanthecouplingboltholesshouldbecleanandwithoutburrs,scrapironandgrease-free,relativepositionofthecouplingaccordingtothedrawingrequirementsare.Couplingtopscrews,rounddistanceapart,indicatorstomonitormovementoftheaircraft,itsvalueisallowedtopassthevalueaxismoving,mountedadjustmentpads,notepadsinstallationdirectionguidepincouplingwithprocessendclosed.Thebackwheelsslowlytightened,when2mmorso,withstandardwhitebarswheretwobackwheelboltholemeasurementaboveandbelow,confirmtwobackwheelboltholeconcentricity.Then,thesymmetricalhorizontalmounttwotemporaryboltstightened,attentiontomonitordialindicator,theninstallthesymmetricaltemporarybolts,thistimesitesslowlymovingrotor,inthemeasuredcircumferenceof8equalpartsbackwheelrimrock,eachmeasuringrelativechangesinvalueshouldbelessthan0.02mm.6.4.5.4couplingreamedandpairedboltreamingdiereamer,adjustablereamers,boringmill,inseveralways.6.4.5.4.1Generalrequirementsbeforereamingorboring,青春期形态发育的显著特点是身高和体重迅速增长,代谢速度比较旺盛青春期发育的突出特征是性发育和性成熟8、青春期的卫生:1)遗精:男子进入青春期以后,在睡梦中精液自尿道排出的现象。精液是由精子和精囊腺、前列腺所分泌的黏液组成,呈乳白色2)月经:女子进入青春期以后,每月一次的子宫出血现象。遗.精和月经....是正常的生理现象,只要注意卫生就行,不必惊慌。9、青春期的性发育包括生殖器官的生长发育和第二性征的发育。男女第二性征分别是在雄性激素和雌性激素的刺激下表现出来的。10、人体的主要系统:运动系统、消化系统、呼吸系统、循环系统、泌尿系统、神经系统、内分泌系统、男女生殖系统。11、细胞和细胞间质组成人体的四种基本组织:上皮组织、结缔组织、肌肉组织和神经组织。12、骨的成

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