问题:二次喷射使整个喷射期持续时间延长,可提高燃烧的经济性。
Monday, December 23, 2024
问题:膨胀水箱的作用是放出冷却系统中的气体,同时向系统内补冷却水。
Saturday, December 21, 2024
问题:燃料供给系统的功用之一是()、()、()、地将柴油喷入燃烧室内。
Friday, January 3, 2025
Saturday, December 21, 2024
Monday, December 23, 2024
Friday, January 3, 2025
Monday, December 23, 2024
问题:下列叙述正确的一组是()A、柴油机向外输出功率一端为前端。B、与输出端相对的一端为后端。C、自由端一端为前端。D、与自由端相对的一端为前端。
Wednesday, January 22, 2025
Wednesday, January 22, 2025
Saturday, December 21, 2024
Saturday, December 21, 2024
问题:一般内燃机车均采用()来实现对柴油机的转速调节和功率的调节。A、联合调节器B、牵引电机C、过渡装置D、司机控制器
Tuesday, August 13, 2024
问题:πK=1.8时,为()增压。A、低B、中C、高D、一般
Wednesday, January 22, 2025
Thursday, July 4, 2024
Wednesday, December 18, 2024
Thursday, May 16, 2024
问题:()常被用做热负荷较高的柴油机活塞的第一道气环。A、矩形环B、扭曲环C、桶面环D、梯形环
Thursday, June 22, 2023
Sunday, June 23, 2024
Friday, January 3, 2025
Saturday, August 24, 2024