 |
| |||
| required element (An element that is required to be present in order to satisfy a schema) | |||
| main member (без которого система теряет устойчивость) | |||
| requisite | |||
| primary member (без которого конструкция теряет устойчивость) | |||
| necessary element (ssn) | |||
| необходимый элемент: 10 phrases in 7 subjects |
| Automated equipment | 1 |
| Energy industry | 1 |
| General | 2 |
| Mass media | 1 |
| Measuring instruments | 2 |
| Programming | 2 |
| Scientific | 1 |