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硅整流交流发电机运转时,不允许正极输出线开路,以免空载电压()。...
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曲轴通过主轴颈支撑在曲轴箱上,按照支撑情况不同,曲轴可分为()曲...
Saturday, September 17, 2022
内燃车辆的电气系统包括().A、起动机B、配电箱C、蓄电池D、信号照明...
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机油稀释变质、冷却不佳和燃烧不良等原因,都会导致柴油发动机()故障的产生。A、过冷B、过热C、振动D、颤动...
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Monday, September 12, 2022
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发动机在不同转速和不同负荷下工作时,()能自动调节发电机的电压。A、节流器B、节压器C、断流器D、调节器...
Wednesday, October 5, 2022
四冲程柴油机的工作循环,主要由进气、()、作功和排气四个行程组成...
Friday, September 16, 2022
Monday, September 12, 2022
Sunday, September 11, 2022
Monday, September 12, 2022
特种设备作业人员是指操作、安装、维修及改造特种设备的人员,不包括...
Wednesday, September 14, 2022
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