Cylinder liners from older lower powered engines had a uniform wall thickness and the cooling was achieved by circulating cooling water through a space formed between （）.

Because of the resulting higher pressures in the cylind...

单项选择题Because of the resulting higher pressures in the cylinder from the combustion of this greater mass of fuel, and the larger diameters, the liner must be made （） at the top to accommodate the higher stresses, and prevent cracking of the material.

Oil is supplied to the crosshead using a swinging arm o...

单项选择题Oil is supplied to the crosshead using a swinging arm or a （） and is sometimes boosted in pressure to and efficient lubrication.

Because of the high loads the bearing material is a tin...

单项选择题Because of the high loads the bearing material is a tin- aluminum alloy bonded to a steel shellThe crosshead pin is highly polished to a （）.