A _____ is piston movement from TDC to BDC or from BDC to TDC. A: state B: starter C: stage D: stroke
A _____ is piston movement from TDC to BDC or from BDC to TDC. A: state B: starter C: stage D: stroke
bottom dead center (BDC)______
bottom dead center (BDC)______
一个域中必须有bdc。()
一个域中必须有bdc。()
u=20sin(628t+30°)V与i=-5sin(314t+10°)A的相位差是() A: 160° B: -160° C: 20° D: 不能确定
u=20sin(628t+30°)V与i=-5sin(314t+10°)A的相位差是() A: 160° B: -160° C: 20° D: 不能确定
ZD6-E型电动转辙机的额定工作电压为()。 A: ADC150V B: BDC160V C: CDC180V D: DDC220V
ZD6-E型电动转辙机的额定工作电压为()。 A: ADC150V B: BDC160V C: CDC180V D: DDC220V
273 . u=20sin(628t+30°)V与i=-5sin(314t+10°)A的相位差是 A: 160° B: -160° C: 20° D: 不能确定
273 . u=20sin(628t+30°)V与i=-5sin(314t+10°)A的相位差是 A: 160° B: -160° C: 20° D: 不能确定
柴油机名词中,BDC表示:
柴油机名词中,BDC表示:
如图,求证(1)角BDC大于角A,(2)角BDC等于角B加角C加A.
如图,求证(1)角BDC大于角A,(2)角BDC等于角B加角C加A.
The distance from TDC to BDC of the diesel engine is called ().
The distance from TDC to BDC of the diesel engine is called ().
上止点常用 BDC 来表示
上止点常用 BDC 来表示