ballonet

/bal-uh-ney/US // ˌbæl əˈneɪ //UK // (ˌbæləˈnɛt) //

球状物,弹丸之地,球体,弹丸

Definitions

n.名词 noun

1
- : an air or gasbag compartment in a balloon or airship, used to control buoyancy and maintain shape.

A smaller balloon, or steering ballonet, as it is called, is attached to the stern of the kite balloon and acts as a rudder.
This resistance was increased by the rush of air into the open mouth of the steering ballonet.
It had an internal air-bag or ballonet whose capacity was one-fifth that of the envelope.
There are two noteworthy innovations in connection with the ballonet.
Special features is a "belly" of Para rubber in lieu of a ballonet.