The upper section of a piston is calle

1、Which area is called the Garden of Eng

Which area is called the Garden of England and is famous for beautiful blossoms in spring?（）AThe county of Kent in southeastern England.BThe ...

2、The lower section of a piston is calle

The lower section of a piston is called the （）.AlandBskirtCcrownDplate

3、The lowest ring of a piston is （）.

The lowest ring of a piston is （）.Aa coil springBa sealing ringCan oil distributor ringDmain seal ring

4、The lower end of each piston rod is re

The lower end of each piston rod is reduced in diameter to fit a bore in （）, this being secured to the piston rod by a nut.Athe crank-webBthe connecting rodCthe main bearingDthe cross-head

5、The lower end of each piston rod is re

The lower end of each piston rod is reduced in diameter to fit a bore in the （）, this being secured to the piston rod by a nut.Apiston gudgeon pinBpiston skirtCcross-headDcross-head pi

6、（）is from baseline to top of the upper

（）is from baseline to top of the upper deck breadth at the ship’s side amidships.AExtreme draftBMolded draftCExtreme depthDMolded depth