Assertion: gear | /r/HasProperty | engaged
Facets:
value: by sliding them
type: MANNER
value: typically
type: DEGREE
Source sentences:
text: The gears were typically engaged by sliding them on their shafts (hence the phrase shifting gears), which required careful timing and throttle manipulation when shifting, so the gears would be spinning at roughly the same speed when engaged; otherwise, the teeth would refuse to mesh.
text: This greatly reduces the resulting stress when gears are engaged.