舱底污水

[ noun ]
water accumulated in the bilge of a ship
<noun.substance>

Bilge \Bilge\, n. [A different orthography of bulge, of same
origin as belly. Cf. {Belly}, {Bulge}.]
1. The protuberant part of a cask, which is usually in the
middle.

2. (Naut.) That part of a ship's hull or bottom which is
broadest and most nearly flat, and on which she would rest
if aground.

3. Bilge water.

{Bilge free} (Naut.), stowed in such a way that the bilge is
clear of everything; -- said of a cask.

{Bilge pump}, a pump to draw the bilge water from the gold of
a ship.

{Bilge water} (Naut.), water which collects in the bilge or
bottom of a ship or other vessel. It is often allowed to
remain till it becomes very offensive.

{Bilge ways}, the timbers which support the cradle of a ship
upon the ways, and which slide upon the launching ways in
launching the vessel.