| Share | Phrase |
|---|
| 29.98% | descending [direction] speed |
| 16.51% | descending [direction] piston |
| 12.85% | descending [direction] slope |
| 8.97% | descending [direction] flank |
| 8.72% | descending [direction] portion |
| 6.89% | platform [is] descending |
| 5.89% | descending [direction] device |
| 5.45% | descending [direction] stroke |
| 4.70% | descending [direction] movement |