Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:汽轮机低油压保护应在()投入。A、带部分负荷后B、定速后C、冲转前...
Tuesday, April 25, 2023
Saturday, September 17, 2022
问题:在工况变化的初期(调门动作前),锅炉汽压与蒸汽流量变化方向相反,...
Tuesday, September 13, 2022
Tuesday, January 17, 2023
问题:移动式电动工具的电源线引线长度一般不应超过()米....
Saturday, September 17, 2022
问题:横销的作用是保证汽缸横向的正确膨胀,并限制汽缸沿()移动。...
Tuesday, September 13, 2022
问题:同一液体在其他条件相同的情况下,被加热时的对流换热系数()被冷却时的对流换热系数。A、大于B、小于C、等于D、差不多...
Monday, December 5, 2022
问题:汽轮机大修后,润滑油泵连续运行8h即可联系检修人员拆除润滑油油管...
Saturday, September 17, 2022
问题:汽轮机的立销、纵销和横销分别引导汽缸沿轴向、垂直和横向膨胀。...
Saturday, September 17, 2022
Sunday, December 17, 2023
问题:影响凝汽器真空的主要因素包括()。A、空气漏入量B、冷却水温度C、循环水量D、汽机通流部分结垢...
Friday, April 12, 2024
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:汽轮机刚一打闸解列后的阶段中,转速下降很快,这是因为刚打闸后,汽...
Saturday, September 17, 2022
Tuesday, September 13, 2022
Saturday, September 17, 2022