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| falling-sphere test | |||
| drop test | |||
| ball impact test; ball test; drop-ball test; falling ball test; falling sphere test | |||
| 落球试验: 21 phrases in 10 subjects |
| Automobiles | 2 |
| Chemistry | 1 |
| Construction | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Polymers | 3 |
| Space | 1 |
| Technology | 7 |
| Wind Energy | 1 |
| Wood processing | 1 |
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