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| 连续调 | |||
| 连续色调 | |||
| 连续影调; 连续色调 | |||
| 连续音; 连续单音 | |||
| 连续浓淡色调 | |||
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continuous-tone : 40 phrases in 9 subjects |
| Communications | 2 |
| Electronics | 2 |
| Information technology | 4 |
| Light industries | 1 |
| Oil / petroleum | 1 |
| Polygraphy | 7 |
| Project management | 2 |
| Technology | 14 |
| Telecommunications | 7 |