Assertion: car shock absorber | /r/MadeOf | spring-loaded check valves
Facets:
value: to control the flow of oil
type: PURPOSE
Source sentences:
text: An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below).
text: An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below).