【单选题】【消耗次数:1】
机床的布局对数控机床是十分重要的,它直接影响机床的结构和使用性能。该说法( )
正确
错误
参考答案:
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相关题目
【单选题】 数控装置是数控机床的核心。该说法( )
①  正确
②  错误
【单选题】 数控机床的传动系统与传统机床的传动系统结构相比要()
①  复杂
②  简单
③  复杂程度一样
④  不一定
【单选题】 数控机床具有高效率的特点。该说法( )
①  正确
②  错误
【单选题】 点位控制机床是指__的数控机床。
①  仅控制刀具相对于工件的定位点坐标,不规定刀具的运动轨迹。
②  必须采用开环控制
③  刀具沿各坐标轴的运动之间有确定的函数关系
【判断题】 机床主轴对加工质量有直接的影响,数控机床主轴部件应有更高的动、静刚度和抵抗热变形的能力。该说法( )
①  正确
②  错误
【单选题】 下列关于数控机床的特点说法错误的是( )
①  加工零件的适应性强,灵活性好
②  加工精度高,产品质量稳
③  生产率高
④  减少工人劳动强度
⑤  生产管理水平提高
⑥  增加工人劳动强度
【单选题】 数控机床的主轴转速和进给速度比传统机床大为提高,但电动机功率较传统机床的小。该说法( )
①  正确
②  错误
【单选题】 数控系统是数控机床的重要部分,它随着计算机技术的发展而发展。该说法( )
①  正确
②  错误
【单选题】 关于数控机床的组成包括( )
①  输入输出设备
②  伺服系统
③  测量反馈装置
④  机床主体
⑤  以上说法均正确
【单选题】 数控机床是数值控制的工作母机的总称。该说法( )
①  正确
②  错误
随机题目
【单选题】 These children are _________ this year than they were last year.
①  moretall
②  moretaller
③  verytaller
④  muchtaller
【单选题】 Yourroomis _______ thanmine.
①  three time big
②  threetimesbig
③  threetimesbigger
④  biggerthreetimes
【单选题】 This book is ________ that one. But __________ than that one.
①  as difficult as ;expensive
②  as more difficult as ; more expensive
③  as difficult as ; more expensive
④  more difficult as ; as expensive
【单选题】 This box is ________ that one.
①  heavy than
②  so heavy than
③  heavier as
④  as heavy as
【单选题】 -Whats your brother like? -He is _________.
①  adriver
②  very tall
③  myfriend
④  atschool
【单选题】 I will visit you if Father _________ me.
①  let
②  lets
③  is letting
④  will let
【单选题】 Now Mike isn’t here. He ________ Mr. Green’s. Perhaps he ________ back in a few minutes.
①  went to ; is coming
②  has gone to ; will come
③  has been to ; will be
④  is going to ; has come
【单选题】 This bright girl __________ the truth in front of the enemy.
①  didn’t say
②  couldn’t speak to
③  said
④  didn’t tell
【单选题】 Look out ! That tree _______ fall down.
①  is going to
②  will be
③  shall
④  would
【单选题】 Every time I _________ there, I will buy him something nice.
①  went
②  will go
③  go
④  have gone