飞艇
4.A nonrigid, buoyant airship. Modern blimps use helium instead of hydrogen to maintain buoyancy.
5.A rigid airship having a long cylindrical body supported by internal gas cells.
6.Of, relating to, or being a lighter-than-air aircraft that holds its shape by gas pressure.
7.They had engines to drive them along, and they could be steered a little.
9.The main body of various other large vehicles, such as a tank, an airship, or a flying boat.
10.Later, balloons were made in the shape of a cigar. These were called airships.
