问题
-
A well-lubricated bearing surface always appears__________.
-
_______ diesel engines generally have two systems of lubrication: a total loss system feeding and a circulating system lubricating the running gear and cooling the pistons.
-
The damaged cargo is not allowed to export without ().A.Repairing or replacingB.To repair
-
Which of the listed cylinder liner surface conditions indicates proper lubrication?A.Dull
-
lubricants
-
They _____ several extra bus lines during the rush hours .A.getB.haveC.runD.take