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| reversals per minute; strokes per minute | |||
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冲数/分 : 21 phrases in 14 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Dermatology | 1 |
| Drilling | 2 |
| Earth sciences | 2 |
| Electronics | 1 |
| General | 1 |
| Geophysics | 2 |
| Information technology | 2 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
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