The way to reduce () is to build up a film of lubricant between any two surfaces that rub against each other.
下列关于Align Surfaces[对其曲面]命令的描述中,正确的是()。
The cylinder liners are made of () and the cylinder surfaces are sometimes chromium-plated.
A bright shiny appearance of the sealing surfaces on diesel engine compression rings indicates()
() will be used to blow away the combustion products from the tube surfaces.
Fins are installed on the generating tube surfaces in waste heat boilers to ().
Scuffed cylinder liner wearing surfaces in a diesel engines can result from ()
Increasing free surfaces has the effect of raising the().
Reducing free surfaces has the effect of lowering the().
下列关于Insert Surfaces命令说法正确的是()。