Sunday, July 16, 2023
问题:阻流板的作用是防止气流不经过电场从旁路绕行的装置。...
Friday, September 22, 2023
问题:30号机油“30”是指该机油在规定温度下的()。A、粘度B、比重C、凝固点...
Tuesday, August 22, 2023
问题:当负荷增大,偶合器内油温升高时,首先发生的现象是()。...
Saturday, September 17, 2022
问题:转机转速700转/min,振动值应小于()。A、0.6mmB、0.12mmC、0.10mm...
Tuesday, September 12, 2023
问题:电晕线周围的电场强度很大,使空气电离,产生大量()和正、负离子。...
Tuesday, September 13, 2022
问题:下列属于安全电压的是()。A、36VB、110VC、220V...
Sunday, July 16, 2023
Saturday, September 17, 2022
Tuesday, January 24, 2023
问题:提升阀控制压力为0.3---0.4Mpa,就地不低于0.25Mpa。...
Thursday, February 22, 2024
Tuesday, October 4, 2022
Thursday, October 5, 2023
问题:减速箱和变速箱是主动机与从动机部件之间变换速度的机构。...
Thursday, April 20, 2023
问题:减速器连续运行中,其油温最高不能超过()℃。A、100B、85C、60...
Tuesday, August 22, 2023
问题:高压隔离开关的绝缘子爬电时,一次电流和电压正常,而二次电流和电压...
Tuesday, September 13, 2022
问题:三极管的发射极与()之间的PN结称为(),集电极与()之间的PN...
Sunday, September 11, 2022
问题:转机为3000转/分时,振动值应小于()。A、0.06毫米B、0.10毫米C、0.16毫米...
Sunday, July 16, 2023
Monday, September 25, 2023
Saturday, September 17, 2022
Tuesday, September 12, 2023