单项选择题
The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web.
A.advantages
B.disadvantages
C.power advantages
D.power disadvantages
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相关考题
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单项选择题
Today, crankshafts for large 2-stroke crosshead engines are of the （）type.
A.semi-built
B.built-up
C.solid forged
D.individual forged -
单项选择题
The crankpins and journals were machined and matching holes bored in the webs, which were slightly （） in diameter.
A.smaller
B.larger
C.higher
D.lower -
单项选择题
The crankshafts on the large modern 2-stroke crosshead engines are （）big （）makes as a single unit and so are constructed by joining together individual forgings.
A.enough；to
B.too；to
C.such；so
D.so；that
