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| 允许界限 | |||
| 允许水平 | |||
| 容许标准; 容许含量 | |||
| 容许输出水平 | |||
| 允许数值 | |||
| permissible level: 32 phrases in 14 subjects |
| Animal husbandry | 1 |
| Automobiles | 2 |
| Aviation | 1 |
| Chemistry | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 7 |
| Engineering geology | 2 |
| Geophysics | 1 |
| Medical | 1 |
| Nuclear physics | 1 |
| Space | 1 |
| Technology | 10 |
| Telecommunications | 2 |