零件园柱度的测量有()法和两点法。A、三点B、四点C、一点D、支点...
Monday, May 6, 2024
Thursday, March 28, 2024
在机器运转过程只有机油中加入润滑剂才能起到润滑的作用,减少磨损。...
Thursday, March 14, 2024
Thursday, March 14, 2024
中央传动的小园锥齿轮的轴向间隙调整值为负值,通常采用测定阻力矩间接测定。...
Monday, May 6, 2024
由于离合器的磨损踏板自由行程也随之增大,因此必须调整。...
Monday, May 6, 2024
由于柱塞副的磨损造成()减少供油。A、早供油晚停供B、晚供油早停供C、早供油早停供D、晚供油晚停供...
Tuesday, February 20, 2024
Thursday, March 28, 2024
目前各种游标量具,读数精度分为1/10mm,1/20mm和()三种。A、1/30mmB、1/40mmC、1/50mmD、1/60mm...
Monday, May 6, 2024
Monday, May 6, 2024
Monday, April 1, 2024
Thursday, March 14, 2024
采用铸铁冷焊时其电流应比一般焊接的电流()。A、相同B、小C、大D、大50%...
Tuesday, February 20, 2024
Monday, May 6, 2024
电动机启动时,必须尽量()启动,以便可靠启动。A、减少负荷B、降压C、减少油量D、增压负荷...
Sunday, December 24, 2023
Thursday, March 14, 2024
Saturday, January 27, 2024
电解液配制时,应将()。A、蒸馏水倒入硫酸中B、硫酸倒入蒸馏水中C、22%的硫酸倒入水中D、水加入电解液中...
Thursday, March 28, 2024
Saturday, January 27, 2024
点火系的火花塞间隙为0.5~0.9,触点间隙为0.25,点火的高压电一般为1~2万伏。...
Thursday, March 28, 2024