《水电站》作业答案及评分标准

全站基槽均为机械开挖，同时为保持一个平整的施工现场，达到文明施工的要求，根据现场情况将所挖出的土、石方只要不是立即回填的，便站外租地存放。Subsequently,theAnhuiArmymilitarySpecialBranch,inShanghai'sCentralIntelligenceOrganizationandtheCommunistpartyorganizationinWesternZhejiangProvince,sentpartybackbone,respectively,wenttoWuJiangyanopenedtheTomb,Tombofheroicpeople,undertheleadershipoftheCommunistParty,fearnosacrificeandpersevering,goaloftheanti-Japaneserevolutionarystruggle.(A)stationedinTaoyuanarea(Tombof)1,thenewarmyoftheCommunistPartyofChinaundergroundorganizationinSeptember1938,theCPCZhuangShaozhen(ZhuangZhen,Nanxunpeople)bytheDeputyDirectorofthepoliticalDepartmentofthearmyonDengZihui'sdispatch,operatingfromJingCounty,AnhuiProvince,theLakereachedtheTomb,itstasksare:lookingforreliableobject,introducethemtothenew,toexpandthenewteam.ZhuangShaozhenKMT-CPCcooperationasanopportunity,afterclassmatesYaoBi(Nanxunpeople,RenZhuxiforcestaffDirector),introducedintotheKuomintanggovernmentpoliticalteam,andasapoliticalleader.HeusedthisopportunitytoinviteprogressiveyouthHongHaiquanformapoliticalteam,atthispoint,theCountyGovernmenthasjustbeenestablished,localschool,unemployedyoutharemorequicklyabsorbedsheng,zhenze,Miaogang,Nanxun,huzhou,morethan20morethanrequired-Japaneseyouth.Inordertoraisethelevelofpoliticalplayersandtheabilitytowork,ZhuangShaozhenXuTemple,isfortheestablishmentofyouth...PoliticalactivitieswillsoonattracttheattentionoftheKuomintang.IsearlyZhuangShaozhenindicatingHongHaiquantoscoopthefirstelementaryschool,teacher'sidentityasacover,carryouttheparty'swork.However,CountyDirectorofeducationcomesintoaction.To第一次作业1.论述水轮机的基本类型和分类方法(1)实际水流利用条件千差万别，各种形式的水轮机可以最大限度的利用水能。1′(2)水轮机可按能量利用特征、水流特征、转轮结构特征分类。1′(3)水轮机的主要类型可以归纳如下：4′混流式轴流定浆式轴流式轴流转浆式斜流式反击式全贯流式伸缩式水轮机贯流式半贯流式竖井式灯泡式水斗式（切击式）冲击式斜击式双击式(4)水轮机按能量转换特征分为两类，为反击式和冲击式:反击式水轮机既利用水流的动能也利用水流的势能；冲击式水轮机只利用水流的动能。a.反击式水轮机按转轮区内水流相对于主轴流动方向的不同可分为:混流式（水流辐向进，轴向出）;轴流式（水流轴向进，轴向出）;斜流式（水流沿着与主轴成某一角度的方向流动）;贯流式（机组在流道中间，周围过水）。其中:轴流式水轮机根据其转轮叶片在运行中能否转动，可分为:轴流定桨式和轴流转桨式.贯流式水轮机根据其发电机装置形式的不同，可分为:全贯流式和半贯流式。b.冲击式水轮机按射流冲击转轮的方式不同可分为:水斗式、斜击式和双击式三种。2′(5)各种水轮机的适用水头不一样。水斗式水轮机的适用水头约为300～1700m，混流式水轮机约为20～700m，轴流式水轮机约为3～80m，斜流式水轮机约为40～200m，贯流式水轮机约为1～25m。2′全站基槽均为机械开挖，同时为保持一个平整的施工现场，达到文明施工的要求，根据现场情况将所挖出的土、石方只要不是立即回填的，便站外租地存放。Subsequently,theAnhuiArmymilitarySpecialBranch,inShanghai'sCentralIntelligenceOrganizationandtheCommunistpartyorganizationinWesternZhejiangProvince,sentpartybackbone,respectively,wenttoWuJiangyanopenedtheTomb,Tombofheroicpeople,undertheleadershipoftheCommunistParty,fearnosacrificeandpersevering,goaloftheanti-Japaneserevolutionarystruggle.(A)stationedinTaoyuanarea(Tombof)1,thenewarmyoftheCommunistPartyofChinaundergroundorganizationinSeptember1938,theCPCZhuangShaozhen(ZhuangZhen,Nanxunpeople)bytheDeputyDirectorofthepoliticalDepartmentofthearmyonDengZihui'sdispatch,operatingfromJingCounty,AnhuiProvince,theLakereachedtheTomb,itstasksare:lookingforreliableobject,introducethemtothenew,toexpandthenewteam.ZhuangShaozhenKMT-CPCcooperationasanopportunity,afterclassmatesYaoBi(Nanxunpeople,RenZhuxiforcestaffDirector),introducedintotheKuomintanggovernmentpoliticalteam,andasapoliticalleader.HeusedthisopportunitytoinviteprogressiveyouthHongHaiquanformapoliticalteam,atthispoint,theCountyGovernmenthasjustbeenestablished,localschool,unemployedyoutharemorequicklyabsorbedsheng,zhenze,Miaogang,Nanxun,huzhou,morethan20morethanrequired-Japaneseyouth.Inordertoraisethelevelofpoliticalplayersandtheabilitytowork,ZhuangShaozhenXuTemple,isfortheestablishmentofyouth...PoliticalactivitieswillsoonattracttheattentionoftheKuomintang.IsearlyZhuangShaozhenindicatingHongHaiquantoscoopthefirstelementaryschool,teacher'sidentityasacover,carryouttheparty'swork.However,CountyDirectorofeducationcomesintoaction.To2.绘出混流式水轮机的示意图（沿主轴剖面图及沿蜗壳中心线平面图，图中应标明其主要部件的名称）。蜗壳顶盖座环导叶叶片下环泄水锥尾水管图1混流式水轮机沿主轴剖面图6′导叶座环壳蜗图2混流式水轮机沿蜗壳中心线平面图4′3.比较混流式、轴流式和水斗式水轮机各主要部件的特征.评分标准：本题中前四种部件是主要方面，学生作答只要涵盖参考答案基本内容即可得分，不要求完全一致。全站基槽均为机械开挖，同时为保持一个平整的施工现场，达到文明施工的要求，根据现场情况将所挖出的土、石方只要不是立即回填的，便站外租地存放。Subsequently,theAnhuiArmymilitarySpecialBranch,inShanghai'sCentralIntelligenceOrganizationandtheCommunistpartyorganizationinWesternZhejiangProvince,sentpartybackbone,respectively,wenttoWuJiangyanopenedtheTomb,Tombofheroicpeople,undertheleadershipoftheCommunistParty,fearnosacrificeandpersevering,goaloftheanti-Japaneserevolutionarystruggle.(A)stationedinTaoyuanarea(Tombof)1,thenewarmyoftheCommunistPartyofChinaundergroundorganizationinSeptember1938,theCPCZhuangShaozhen(ZhuangZhen,Nanxunpeople)bytheDeputyDirectorofthepoliticalDepartmentofthearmyonDengZihui'sdispatch,operatingfromJingCounty,AnhuiProvince,theLakereachedtheTomb,itstasksare:lookingforreliableobject,introducethemtothenew,toexpandthenewteam.ZhuangShaozhenKMT-CPCcooperationasanopportunity,afterclassmatesYaoBi(Nanxunpeople,RenZhuxiforcestaffDirector),introducedintotheKuomintanggovernmentpoliticalteam,andasapoliticalleader.HeusedthisopportunitytoinviteprogressiveyouthHongHaiquanformapoliticalteam,atthispoint,theCountyGovernmenthasjustbeenesta