optional
| fitting
| optional | |
| comp., MS | optioneel |
| fitting | |
| chem. el. | pijpfitting; vormstuk |
| construct. | montagewerkzaamheden |
| earth.sc. mech.eng. | armatuur |
| environ. | hulpstukken |
| industr. construct. | passen |
| mater.sc. mech.eng. | nastelling; precisiepassing |
| mech.eng. | buisverbinding |
| met. | het afstellen |
| |||
| optioneel (Pertaining to a component, parameter and so on that is not required or automatic) | |||
| English thesaurus | |||
| |||
| opsh | |||
| opt. | |||
| |||
| o/p | |||
| O | |||
|
optional : 105 phrases in 21 subjects |