Assertion: transmission's gear | /r/AtLocation | constant mesh
Facets:
value: in a planetary gear system
type: LOCATION
Source sentences:
text: In this form of gearbox, the planetary gears are in constant mesh, and all that is required is to use a mechanism to fix or release the rotation of the outer gear ring.
text: Because the gears are in constant mesh in a planetary gear system, gear changes are made without engaging or disengaging gears, like you do on a manual transmission.