Friday, September 16, 2022
问题:挖掘机发动机工作模式选择按钮中,S、L、H分别表示()。...
Wednesday, September 14, 2022
Sunday, March 12, 2023
问题:土质路堤压实施工中,加水困难时,可采用(),提高压实度。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:在压路机下面进行维修工作时,要有正确的()设备或附件支撑。...
Wednesday, September 21, 2022
Sunday, September 18, 2022
问题:单选题柱塞式喷油泵通过滚轮体的调整螺钉或调整垫块可以()。A 改变喷油泵各分泵的供油提前角B 改变喷油泵的供油压力C 改变喷油泵的循环供油量D 改变各分泵的有效行程...
Tuesday, February 20, 2024
问题:单选题与节流阀相比较,调速阀的显著特点是()。A 调节范围大B 结构简单,成本低C 流量稳定性好D 最小压差的限制较小...
Tuesday, February 20, 2024
Saturday, September 17, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Wednesday, September 21, 2022
Thursday, September 22, 2022
Friday, September 16, 2022
问题:土质路堤压实的目的是通过压实可以使路堤获得一定的(),提高路堤的强度和水稳定性,减小由于荷载和大气因素作用产生的变形。...
Thursday, September 22, 2022
问题:多选题实际使用中,起动机的输出功率受许多因素影响,其中最主要的有()。A发动机功率B接触电阻C导线电阻D蓄电池容量...
Sunday, March 12, 2023
问题:一般情况下,发动机机油液位不会降低,所以如果降低就说明漏油。...
Thursday, September 22, 2022
Monday, September 19, 2022
Thursday, September 22, 2022