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| English thesaurus | |||
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| LDR | |||
| Light: 832 phrases in 47 subjects |
| Agriculture | 21 |
| Antennas and waveguides | 7 |
| Beverages | 2 |
| Chemistry | 4 |
| Coal | 4 |
| Commerce | 2 |
| Communications | 71 |
| Construction | 5 |
| Cultural studies | 12 |
| Earth sciences | 84 |
| Ecology | 1 |
| Economy | 1 |
| Electronics | 116 |
| Energy industry | 7 |
| Environment | 7 |
| Finances | 1 |
| Fish farming pisciculture | 5 |
| Food industry | 4 |
| Forestry | 3 |
| General | 28 |
| Health care | 2 |
| Immigration and citizenship | 4 |
| Industry | 66 |
| Information technology | 23 |
| Insurance | 1 |
| Labor law | 8 |
| Law | 5 |
| Life sciences | 13 |
| Lighting other than cinema | 31 |
| Materials science | 14 |
| Mechanic engineering | 14 |
| Medical | 6 |
| Metallurgy | 6 |
| Microsoft | 8 |
| Mineral products | 3 |
| Natural sciences | 22 |
| Nuclear physics | 3 |
| Oil / petroleum | 2 |
| Patents | 9 |
| Physical sciences | 9 |
| Physics | 6 |
| Power lines | 2 |
| Spices | 1 |
| Statistics | 2 |
| Technology | 5 |
| Transport | 177 |
| United Nations | 5 |