Small crack in the crankshaft bearing surface of a diesel engine are an indication of____.

According to Paragraph 3, why are there cracks in rocks？A．Because the rocks are fragile un

When start a screw pump, the by pass valve should be ____.A.closedB.opened fullyC.cracked

Although the crankshafts of medium diesel engines appear to be robust, they rely on the su

What is the speed of the crankshaft in a four－stroke／cycle engine when the camshaft is tur

As it turned out to be a small party in the house, we______so formally.A．needn"t dress upB

When a crankshaft _____ outside the engine, it should be carefully supported in a manner which will avoid imposing high bending moments on it.