单项选择题X 纠错
A.a two-stroke engine works without exhaust operation
B.a two-stroke engine works without compression stroke
C.a two-stroke engine works without expansion stroke
D.a two-stroke engine works without suction operation
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单项选择题
A.fuel spray; the burning of the fuel
B.the burned gas mixture; connecting rod
C.medium shaft;crankshaft
D.the burned gas mixture; piston rod
单项选择题
A.the burning of the fuel; medium shaft
B.fuel spray; fresh air
C.fuel; fuel spray
D.the burning of the fuel; the burned gas mixture
单项选择题
A.high
B.low
C.fast
D.lowly
单项选择题
A.To reduce the main engine speed
B.To increase the main engine speed
C.To govern the main engine speed
D.To fix the propeller shaft
单项选择题
A.Two main areas of skill are involved in the construction of ship
B.There are distinct divisions in responsibilities between naval architects and marine engineers
C.Each ship will assume varying proportions according to its type
D.Ships can be divided into different categories from different perspectives
单项选择题
A.larger
B.equal
C.smaller
D.equivalent
单项选择题
A.equal
B.larger
C.smaller
D.equivalent
单项选择题
A.the lubricating oil consumption
B.the turbine blade temperature
C.the flow rate of fuel
D.scavenge air pressure
单项选择题
A.Ⅱ
B.Ⅲ
C.Ⅰ+Ⅲ
D.Ⅰ
单项选择题
A.two knock
B.three knocks
C.four knocks
D.five knocks