1.
matching surface
配合面
例句：
"In general,installation is the reverse of removal.be sure the matching faces of the transmission and the flywheel housing are clean."
一般来说,装配的顺序与拆卸相反.装配时,应确保变速器的配合面和飞轮壳的清洁,
2.
mating annular face
环形配合面
例句：
Clean the exhaust manifold and cylinder head mating surfaces.
清洁排气歧管和汽缸头配合面.
