题目内容

轴封供汽带水在机组运行中有可能使轴端汽封（），重者将使机组发生（），危害机组安全运行。

查看答案

搜索结果不匹配？点我反馈

更多问题

（）在发放票据时要根据各节车厢的售出量做到少发、勤发，尽量做到当趟不断号、一趟一销帐。

A. 正班列车长
B. 列车值班员
C. 副班列车长

查看答案

战术资产配置策略只需在期货市场上通过买卖股指期货来实现，无需在股票市场上进行股票交易。

A. 正确
B. 错误

查看答案

人格内向者倾向于回避变化不定的活动，对单调、重复性工作耐受性（），较（）出现应激反应。

查看答案

An alternator switchboard has a synchroscope and synchronizing lamps, if the synchroscope is broken, which of the steps listed is the most essential before an alternator can be paralleled with the bus （）

A. The breaker should be closed when one synchronizing lamp is dark and the other is bright
B. The breaker should be closed when both synchronizing lamps are bright
C. The frequency meter should be used to determine that the incoming alternator frequency is slightly higher than the bus
D. A portable phase sequence indicator must be used to verify the information from the lam

查看答案