| 摘要 |
<p>The invention relates to a hand-held fluid nozzle unit (1) for a fluid dispensing installation such as a fuel pump. The invention also relates to means for transferring information from one location to another in a hazardous environment. In both instances, an optical fibre (20) is preferably used to transfer information along the conduit (4) carrying a hazardous material such as petrol.</p> |
