приклади
The Royal Navy has two submarine rescue submersibles , the NR5 and Scorpio, which are currently on standby near Glasgow.
If the cable is severed then the submersibles are designed to sink to the seabed before the ballast in their tanks is jettisoned so that they rise to the surface.
It was time for Britain to acquire submersibles and find out just how much of a menace they might be.
Are our submarines, submersibles and aqualungs not merely imitations of devices and mechanisms that Nature ‘invented’ a long, long time ago?
He's been down in every imaginable piece of diving gear known to man as well as a wide array of underwater submersibles and crafts.
Other
M-translate