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preparation of the : 71 phrases in 22 subjects |
| Agriculture | 2 |
| Business | 1 |
| Communications | 1 |
| Construction | 2 |
| Economics | 3 |
| Education | 2 |
| Electronics | 1 |
| Energy industry | 1 |
| Environment | 18 |
| Finances | 2 |
| General | 6 |
| Health care | 1 |
| Industry | 2 |
| Information technology | 2 |
| Marketing | 2 |
| Microsoft | 1 |
| Name of organization | 1 |
| Patents | 8 |
| Social science | 5 |
| Technology | 2 |
| Transport | 4 |
| United Nations | 4 |