1) main transformer fan
主变风扇
1.
Design and application of main transformer fan shutdown alarm schemes;
主变风扇全停报警方案设计和实施
2) main fan
主扇风机
1.
In view of the problems occurred in the daily electric maintenance of main fans introduced from France and by analyzing the reasons,the improved and preventive measures are carried out,thus effectively guaranteeing safety running of main fans.
针对东滩煤矿引进法国主扇风机在电气日常维护中暴露的问题,通过分析原因,实施了改进和预防措施,从而有效地保证了主扇风机安全可靠地运行。
2.
This paper introduces the functions of the excitation device in the normal operation of the main fan,and connecting with the actual situation,makes the technical analysis on the faults often occurring in the excitation devices.
介绍了励磁装置在主扇风机正常运转中的作用,结合工作中的实际情况,对励磁装置经常出现的故障进行了技术分析。
3.
To analyze the effect on the others after adjusting the performance of a certain fan when multiple-set main fan unitedly work at the same time,point out the performance changing rules.
论述了多台主扇风机联合运转时 ,其中某台风机性能调节后对其余风机性能的影响 ,指出了调节时风机性能变化规
3) main fan ventilation
主扇通风
1.
The economic reasonabless of mine main fan ventilation and measures of saving power are expounded in the paper.
阐述了矿井主扇通风的经济合理性及节约主扇电耗的措施。
4) variable-pitch fan
变距风扇
5) Ventilation by main and auxiliary fans
主辅扇通风
6) transformer fan
变压器风扇
补充资料：主动脉瓣退行性变
主动脉瓣退行性变
retrograde affection of aortic valve
主动脉瓣叶呈黏液样改变，组织菲薄和半透明状，不能耐受主动脉内舒张期压力而产生关闭不全。常见于梅毒性主动脉炎、马方综合征、主动脉中层坏死、老年性退行性改变和其他原因引起的升主动脉瘤中。临床表现同主动脉瓣关闭不全。应行主动脉瓣替换术。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条