Thermal expansion of solid is ______ detected by our naked eyes.A．small so as not beB．so s

Aluminum pistons have _____ coefficient of thermal expansion compared with those of cast iron.

The working cycle of a four－stroke diesel engine consists of four events: （1) compression; （2) expansion; （3) exhaust; （4) suctionThe correct sequence is _____.

It is obvious that the expansion of the water ______ the increase of its temperature.A.is

One function of the thermal expansion valve is to________.A.act as a pilot from the soleno

The thermal expansion valve responds to the______.A.amount of superheat in the vapor leavi

_____ pistons have low inertia and high coefficient of thermal expansion.A.Cast ironB.Cast