大沟(major groove)和小沟(minor groove)

大沟(major groove)和小沟(minor groove)


相关考题:

Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?A.Control the amount of lube oil burned in the combustion chamberB.Transmit heat from the piston to the cylinder linerC.Prevent damage to ring groove inserts by acting as a heat damD.Dissipate combustion chamber gas pressure by channeling it through the ring gap

网管系统中的故障管理的告警级别是什么()。 A、严重(Critical)B、重要(Major)C、次要(Minor)D、警告(Warning)

“行李内有哪些主要物品?”的英文为( )A.What are the major problems in your baggage?B.What are the major articles in your baggage?C.What are the minor articles in your baggage?D.What are the articles in your baggage?

What led you to select your major? You minor?

What are your major subject and minor subjects?

额叶与顶叶的界线为A.中央沟B.中央前沟C.中央后沟D.额上沟E.顶内小沟

During the installation of the groove,the total cross-sectional area of the conductor including insulation in the same groove shall not exceed the inner cross-sectional area of the groove.( )。在线槽安装过程中,同一线槽内包括绝缘在内的导线截面积总和应该不超过线槽内部截面积的( )。A.20%B.40%C.60%D.80%

在无线基站QA评分制度与标准里,布线有交叉现象,检查结果为()A、严重(Critical)B、普通(Major)C、轻微(Minor)

为提高水分的利用率,园林苗圃的排灌沟渠应采用()。A、明沟B、暗沟C、大沟D、小沟

在环形波浪的内部边缘衰竭参数中,()表示设置次级边缘成长的周期。A、Major CyclesB、Crawl TimeC、Minor CyclesD、Width Flux

TippingPoint IPS把风险按危害程度分为四类:严重危害(Critical)、显著危害(Major)、一般危害(Minor)、低风险攻击(Low)。()

B-DNA中出现的大沟、小沟有何差别?

“行李内有哪些主要物品?”的英文为()A、What are the major problems in your baggage?B、What are the major articles in you rbaggage?C、Whatare the minor articles in your baggage?D、What are the articles in your baggage?

多选题沟槽特征Groove可以置于下列哪些面上()A圆柱面B圆锥面C平面D球面

单选题If the piston groove drain holes for the oil control rings become clogged, which of the following is likely to occur?()AThe oil control rings will seal improperly and wear rapidlyBThe piston will overheat due to insufficient lubricationCExcessive oil will remain on the cylinder wallDLight brown smoke will emanate from the engine exhaust

单选题A diesel engine piston ring face is in direct contact with the ().Atop of the ring grooveBcylinder liner oil filmCbottom of the ring grooveDback of the ring groove

单选题要创建Groove工作区,可在“开始”选项卡中,单机“新建”下接列表然后选()AGroove工作区Bshare-Groove工作区Cshare-Pointment工作区D打开文件

单选题Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?()AControl the amount of lube oil burned in the combustion chamberBTransmit heat from the piston to the cylinder linerCPrevent damage to ring groove inserts by acting as a heat damDDissipate combustion chamber gas pressure by channeling it through the ring gap

判断题所有成型特征(凸台Boss,孔Hole,槽Pocket,凸垫Pad,键槽Slot,沟槽Groove)都必须建立在平面上。A对B错

判断题所有成型特征(凸台Boss,孔Hole,刀槽Pocket,凸垫Pad,键槽Slot,割槽Groove)都必须建立在平面上。A对B错

问答题什么是胃小区、胃小沟及结肠无名沟?

单选题Which of the listed devices could be used as a ring groove tool during preparation for the installation of new rings?()ASteel brushBFine emery cloth or steel woolCA section of the removed compression ringDA case hardened scraper

单选题If the compression rings on a diesel engine piston become stuck in the ring groove, the cause may be due to()Aexcessive ring actionBexcessive ring temperatureCimproper ring rotationDexcessive ring face wear

单选题The sealing function of the piston ring is brought about by the gas pressure above and behind the piston ring, which forces it () against the bottom of the ring groove, and () against the cylinder wall.Aupwards;inwardsBupwards;outwardsCdownwards;inwardsDdownwards;outwards

单选题Ring groove inserts are occasionally used on aluminum alloy piston to()Areduce the ring groove wear rateBseal against crankcase vaporsClessen the wear on aluminum part of the cylinderDallow for the greater expansion rate of aluminum

单选题Broken piston rings manifest themselves during the scavenge port inspection by()ALack of elastic tension, when the rings are pressed into the groove by means of a stickBBlackish appearanceCFractured rings and missing ringsDall off the above

名词解释题大沟(major groove)和小沟(minor groove)