Assertion: gear's ratio | /r/HasProperty | complementary
Facets:
value: nearly
type: DEGREE
Source sentences:
text: In the middle three of the hub’s seven gears, power passes through both stages, and so the hub does not use the unity ratios of both stages at once; rather, it achieves a near-unity ratio by gearing down and then up through two ratios that are nearly complementary, avoiding an awkward shift.