| 摘要 |
<p>Portable thermoplastic water carrier includes a filler with a screw cap, and a tube which reaches into the tank and through which the tank is emptied. The part of the tube lying inside the tank is rigid and reaches close to the tank bottom; it emerges from the tank at one half of a convention of coupling. The other half of the coupling is attached to a hose; and both halves of the coupling have valves which close when the halves are sepd. and which open again when they are re-coupled.</p> |
