|
|
|
|
|
|
|
|
|
Астронавигация
| Судовой словарь (глоссарий морских терминов) |
|
Celestial navigation, английский
- To calculate your position using time and the position of celestial bodies.
- Астронавигация
- Астронавигация, астронавтика
- The science of determining position by means of heavenly bodies rather than by surface landmarks as in pilotage.
|
|
Центр гравитации, русский
Catenary, английский
- Цепная линия
- The curve formed by a flexible cord hung between two points of support.
- The sag in a line or chain that is suspended between two points. the deeper the curve the more the catenary. when its cable is almost straight the anchor is easily snubbed or lifted from the ground, but with a full catenary it lies along the bottom so that any pull tends to dig the flukes in deeper. the word is derived from the latin for chain, and one of the main reasons chain is used for anchor cables is that its weight tends to form a natural catenary.
- Originally the term used to denote an overhead power line support wire derived from the curve a suspended wire naturally assumes under the force of gravity. now adopted to mean the whole overhead line system. see overhead.
- Term given to overhead wires which support the contact wire.
|
|
|
|
|
|
|
