n. 加倍, 双重, 折迭, 重合, 折回, 防护板, 加强板

[计] 双倍, 双重

Double \Dou"ble\, v. t. [imp. & p. p. {Doubled}; p. pr. & vb. n.
{Doubling}.] [OE. doblen, dublen, doublen, F. doubler, fr. L.
duplare, fr. duplus. See {Double}, a.]
1. To increase by adding an equal number, quantity, length,
value, or the like; multiply by two; as, to double a sum
of money; to double a number, or length.

Double six thousand, and then treble that. --Shak.

2. To make of two thicknesses or folds by turning or bending
together in the middle; to fold one part upon another part
of; as, to double the leaf of a book, and the like; to
clinch, as the fist; -- often followed by up; as, to
double up a sheet of paper or cloth. --Prior.

Then the old man
Was wroth, and doubled up his hands. --Tennyson.

3. To be the double of; to exceed by twofold; to contain or
be worth twice as much as.

Thus re["e]nforced, against the adverse fleet,
Still doubling ours, brave Rupert leads the way.
--Dryden.

4. To pass around or by; to march or sail round, so as to
reverse the direction of motion.

Sailing along the coast, the doubled the promontory
of Carthage. --Knolles.

5. (Mil.) To unite, as ranks or files, so as to form one from
each two.


Doubling \Dou"bling\, n.
1. The act of one that doubles; a making double;
reduplication; also, that which is doubled.

2. A turning and winding; as, the doubling of a hunted hare;
shift; trick; artifice. --Dryden.

3. (Her.) The lining of the mantle borne about the shield or
escutcheon.

4. The process of redistilling spirits, to improve the
strength and flavor.

5. raising the stakes in a game, such as a card game or
backgammon, by a factor of 2.

Syn: double.
[WordNet 1.5]

{Doubling a cape}, {promontory}, etc. (Naut.), sailing around
or passing beyond a cape, promontory, etc.