| Share | Phrase |
|---|
| 22.58% | sophisticated [difficulty] system |
| 14.91% | sophisticated [difficulty] tooling |
| 9.43% | sophisticated [difficulty] control |
| 8.02% | more sophisticated |
| 7.41% | sophisticated [difficulty] device |
| 6.96% | sophisticated [difficulty] equipment |
| 6.90% | sophisticated [difficulty] sensor |
| 4.88% | sophisticated [difficulty] become |
| 4.74% | sophisticated [difficulty] circuitry |
| 4.22% | sophisticated [difficulty] means |
| 4.04% | sophisticated [difficulty] mechanism |
| 3.31% | more [degree] sophisticated |
| 2.54% | highly [degree] sophisticated |