The trend nowadays is to build the frame box as a
The trend nowadays is to build the frame box as a separate fabricated construction and then, after stress relieving and machining the mating surfaces, to mount it on the _____. This has the advantage of saving weight.
A.seating
B.bed-plate
C.entablature
D.cylinder block
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:B
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