Assertion: levitation's use | /r/HasProperty | expensive
Facets:
value: very
type: DEGREE
Source sentences:
text: However, the cryogenic system used to cool the coils can be expensive and add significantly to construction and maintenance costs.
text: Despite their name, not all linear induction motors produce linear motion; some linear induction motors are employed for generating rotations of large diameters where the use of a continuous primary would be very expensive.