Ball bearing and glands in the socket of gooseneck to be cleaned，examined，repaired or rene

A.A

B.B

C.C

D.D

A.A

B.B

C.C

D.D

A.数据

B.风度

C.分布

A.the bearing clearances

B.the bearing thickness

C.the bearing strength

D.the bridge hardness

A true bearing of a charted object，when plotted on a chart，will establish a ______.

A.fix

B.line of position

C.relative bearing

D.range

Adjust ______by means of lead wire.

A.the clearance of the main bearing

B.the diameter of main bearing

C.the gap of main bearing

D.the tolerance of main bearing