单项选择题
The top piston ring is plasma coated to give the lowest wear rate to reach the goal of two-years’ with sufficient margin（）
A.TBO
B.CEO
C.CFO
D.MCR
点击查看答案&解析
相关考题
-
单项选择题
Around the combustion chamber, all the main components are bore cooled to give low strains and the smallest, circumferentially symmetric deformations for good sealing between piston rings and liner（）
A.thermal
B.mechanical
C.plastic
D.elastic -
单项选择题
Around the combustion chamber, all the main components are to give low thermal strains and the smallest, circumferentially symmetric deformations for good sealing between piston rings and liner（）
A.drill cooled
B.hole cooled
C.tube cooled
D.bore cooled -
单项选择题
Top piston rings are plasma coatedIt gives added safety for the of new lines（）
A.running-in
B.running-out
C.running on
D.running down
