单项选择题
A.expansion ratio B.pressure ratio C.compression ratio D.clearance ratio
A distance piece, with ground faces, known as a compres...
单项选择题A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct （）.
A.compression pressure B.compression test C.compression ratio D.compression clearance
A distance piece, known as a （） may be interposed betwe...
单项选择题A distance piece, known as a （） may be interposed between the rod and the bearing housing.
A.bearing shell B.bearing liner C.compression plate D.lead wire
A diesel engines crankcase oil level is found to be too...
单项选择题A diesel engines crankcase oil level is found to be too high√ You should suspect that （）.
A.the engine was over filled B.there might be a fuel leak C.there might be a water leak D.all of the above
