| Share | Phrase |
|---|
| 35.09% | subsidiary [importance] chamber |
| 13.22% | subsidiary [importance] hole |
| 10.15% | subsidiary [importance] tank |
| 6.81% | subsidiary [importance] sensor |
| 3.76% | subsidiary [importance] component |
| 3.53% | subsidiary [importance] rod |
| 3.27% | subsidiary [importance] unit |
| 2.97% | subsidiary [importance] path |
| 2.72% | subsidiary [importance] fork |
| 2.69% | subsidiary [importance] means |
| 2.55% | subsidiary [importance] channel |
| 2.22% | subsidiary [importance] combustion |
| 1.92% | subsidiary [importance] passage |
| 1.48% | subsidiary [importance] jacket |
| 1.40% | subsidiary [importance] mixture |
| 1.36% | subsidiary [importance] object |
| 1.36% | subsidiary [importance] switch |
| 1.31% | subsidiary [importance] control |
| 1.18% | subsidiary [importance] condition |
| 0.91% | subsidiary [importance] line |