- 搜标题
- 搜题干
- 搜选项
单项选择题
An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with________.
An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with________.
A.graphite packing
B.sealing compound
C.lubricating oil
D.gaskets
A.
A.graphite
B.sealing
C.lubricating
D.gaskets
A.graphite
B.sealing
C.lubricating
D.gaskets
