成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd; line-height:20.0pt;mso-line-height-rule:exactly">38、<span style="mso-bidi-font-size: 10.5pt">切削加工时<span lang="EN-US">,</span>由于塑性变形<span lang="EN-US">,</span>表层金属的强度和硬度都得到了强化<span lang="EN-US">,</span>这种现象被称为<span lang="EN-US"><span style="mso-spacerun:yes"> </span>( ) <o:p></o:p></span></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="text-indent:24.1pt">28、<span style="font-size:12.0pt; font-family:华文中宋;color:windowtext">机床主轴前轴承的精度选择可比后轴承低一级。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）<b style="mso-bidi-font-weight:normal"><span lang="EN-US"> <o:p></o:p></span></b></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="text-indent:24.1pt">8、<span style="font-size:12.0pt; font-family:华文中宋;color:windowtext">主轴轴承可根据刚度、旋转精度和极限转速来选择。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）<b style="mso-bidi-font-weight:normal"><span lang="EN-US"> <o:p></o:p></span></b></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">12、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">机床支承件均设置纵向隔板来加强其抗扭刚度。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">25、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">铸铁材料的抗弯刚度高，常作为机床支承件的首选材料。 <span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">5、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">滑台是实现组合机床主运动的通用动力部件。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">3、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">机床工作台设置斜向隔板主要用于提高其抗弯刚度。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">20、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">爬行是进给机构低速转动时工作台的均匀运动现象。 <span style="mso-spacerun:yes"> </span><span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">15、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">传动链是指构成某个传动联系的主运动。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">27、<span style="font-size:12.0pt;font-family:华文中宋;color:windowtext">受结构限制，多轴箱油泵齿轮也可布置在第Ⅳ排。<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>