| русский | rus-000 |
| линия зацепления | |
| English | eng-000 | LOA |
| English | eng-000 | length of contact between teeth |
| English | eng-000 | line of action |
| English | eng-000 | line of contact |
| English | eng-000 | line of engagement |
| English | eng-000 | path of action |
| English | eng-000 | path of contact |
| English | eng-000 | pressure line |