| Share | Phrase |
|---|
| 34.90% | protecting [purpose] plate |
| 21.20% | protecting [purpose] member |
| 16.72% | protecting [purpose] layer |
| 12.26% | protecting [purpose] structure |
| 6.03% | protecting [purpose] circuit |
| 5.35% | protecting [purpose] tube |
| 3.51% | protecting [purpose] means |