caisson
n . 弹药箱,弹药车,潜水箱(水中工程用)
弹药箱,弹药车,潜水箱(水中工程用)
caisson n 1 :
an ornamental sunken panel in a ceiling or dome [
synonym :
{
coffer }, {
caisson }, {
lacuna }]
2 :
a two -
wheeled military vehicle carrying artillery ammunition 3 :
a chest to hold ammunition [
synonym : {
caisson }, {
ammunition chest }]
4 :
large watertight chamber used for construction under water [
synonym : {
caisson }, {
pneumatic caisson }, {
cofferdam }]
Caisson \
Cais "
son \,
n . [
F .,
fr .
caisse ,
case ,
chest .
See 1st {
Case }.]
1 . (
Mil .)
(
a )
A chest to hold ammunition .
(
b )
A four -
wheeled carriage for conveying ammunition ,
consisting of two parts ,
a body and a limber .
In light field batteries there is one caisson to each piece ,
having two ammunition boxes on the body ,
and one on the limber . --
Farrow .
(
c )
A chest filled with explosive materials ,
to be laid in the way of an enemy and exploded on his approach .
[
1913 Webster ]
2 .
(
a )
A water -
tight box ,
of timber or iron within which work is carried on in building foundations or structures below the water level .
(
b )
A hollow floating box ,
usually of iron ,
which serves to close the entrances of docks and basins .
(
c )
A structure ,
usually with an air chamber ,
placed beneath a vessel to lift or float it .
[
1913 Webster ]
3 . (
Arch .)
A sunk panel of ceilings or soffits .
[
1913 Webster ]
{
Pneumatic caisson } (
Engin .),
a caisson ,
closed at the top but open at the bottom ,
and resting upon the ground under water .
The pressure of air forced into the caisson keeps the water out .
Men and materials are admitted to the interior through an air lock .
See {
Lock }.
[
1913 Webster ]
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