aqualung
['ækwәlʌŋ]
n. 器

1. It was a perfection of a valve that made the aqualung possible and put man back into the sea with all the freedom of a fish.
   阀完善使研究器，将送海里，使其象鱼自。

aqualung
[ noun ]
a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus
<noun.artifact>




aqualung \aqualung\ n.
an apparatus containing compressed air or other oxygen-gas
mixture, permitting a person to breathe under water; -- also
called a {scuba}.

Syn: scuba
[WordNet 1.5 +PJC]