成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">29、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">切削加工时，由于塑性变形，表层金属的强度和硬度都得到了强化，这种现象被称为</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">（</span><span style="mso-bidi-font-size: 10.5pt;color:windowtext"> </span><span style="mso-bidi-font-size:10.5pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）</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 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">30、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">在大批量生产条件下，若装配精度要求高、参入装配的组成件较少，此时应选择（</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）装配方法。</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 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">33、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">在大批大量生产条件下，一般采用（</span><span style="mso-bidi-font-size:10.5pt;color:windowtext"> </span><span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">）。</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 [单选] <p class="MsoNormal">38、<span style="mso-bidi-font-size:10.5pt">工件的装夹是指<span lang="EN-US"> (<span style="mso-spacerun:yes"> </span>)<span style="mso-spacerun:yes"> </span></span>过程的总和｡</span></p>
- 2022-09-12 [判断] 18、溢流阀、顺序阀都有先导式结构，由主阀和先导阀组成，三者的主阀芯在结构上差异很大。
- 2022-09-12 [判断] 15、沿程压力损失是液体在管中流动时因粘性摩擦而产生的损失。
- 2022-09-12 [判断] 19、配流轴式径向柱塞泵的排量q与定子相对转子的偏心成正比，改变偏心即可改变排量。
- 2022-09-12 [判断] 2、调速阀是进行了温度补偿的节流阀，它由定比减压阀和节流阀串联而成。
- 2022-09-12 [判断] 5、定量泵是指输出流量不随泵的输出压力改变的泵。
- 2022-09-12 [判断] 8、在液压系统中，液压缸差动连接的目的是降低执行元件运动速度。