Assertion: curvilinear coordinate | /r/HasProperty | useful
Facets:
value: accretion disks in astronomy,
type: LOCATION
value: in connection with objects and phenomena
type: TRANSITIVE-OBJECT
Source sentences:
text: Cylindrical coordinates are useful in connection with objects and phenomena that have some rotational symmetry about the longitudinal axis, such as water flow in a straight pipe with round cross-section, heat distribution in a metal cylinder, electromagnetic fields produced by an electric current in a long, straight wire, accretion disks in astronomy, and so on.