_____是北京西南的重要出口,1987年一期工程通车,成为北京历史上第一条高速公路,被称为“_____”。
查看答案
1992年7月1日开工的自_____至 _____的地铁于1999年9月建成通车,人称“_____”。
1999年开通的平安大道宽_____米,双向_____条车道,全长_____米。
With No.1 and No.2 alternators running in parallel and the kW loads equally shared, one alternator is drawing much higher current than the otherWhat does this indicate?
A. The alternators are not generating the same voltages and should be adjusted on automatic voltage regulator rheostats
B. Alternator frequencies are different and should be adjusted on the governor speed controllers
C. Alternators are out of phase and should be tripped and paralleled again
D. One alternator has lost one of its phases
八达岭高速公路全长 _____公里,沿途共建桥梁_____座,其中特大桥梁---八达岭高架天桥长_____米,全程开凿隧道_____处,最长的潭浴口隧道全长_____米。