[计] 聚光的

[ noun ]
the act of increasing the density of something
<noun.act>

Condense \Con*dense"\, v. t. [imp. & p. p. {Condensed}; p. pr. &
vb. n. {Condensing}.] [L. condensare; con- + densare to make
thick or dense, densus thick, dense: cf. F. condenser. See
{Dense}, and cf. {Condensate}.]
1. To make more close, compact, or dense; to compress or
concentrate into a smaller compass; to consolidate; to
abridge; to epitomize.

In what shape they choose,
Dilated or condensed, bright or obscure. --Milton.

The secret course pursued at Brussels and at Madrid
may be condensed into the usual formula,
dissimulation, procrastination, and again
dissimulation. --Motley.

2. (Chem. & Physics) To reduce into another and denser form,
as by cold or pressure; as, to condense gas into a liquid
form, or steam into water.

{Condensed milk}, milk reduced to the consistence of very
thick cream by evaporation (usually with addition of
sugar) for preservation and transportation.

{Condensing engine}, a steam engine in which the steam is
condensed after having exerted its force on the piston.

Syn: To compress; contract; crowd; thicken; concentrate;
abridge; epitomize; reduce.