expansion 音标拼音: [ɪksp'ænʃən] [ɪksp'æntʃən]
n . 张开,伸展;扩张,膨胀;扩张的,扩张部分
张开,伸展;扩张,膨胀;扩张的,扩张部分
expansion 扩充; 延伸
expansion 膨胀 扩展 扩充
expansion n 1 :
the act of increasing (
something )
in size or volume or quantity or scope [
synonym : {
expansion }, {
enlargement }] [
ant :
{
contraction }]
2 :
a function expressed as a sum or product of terms ; "
the expansion of (
a b )^
2 is a ^
2 2ab b ^
2 "
3 :
a discussion that provides additional information [
synonym :
{
expansion }, {
enlargement }, {
elaboration }]
4 :
adding information or detail [
synonym : {
expansion }, {
expanding upon }]
Expansion \
Ex *
pan "
sion \,
n . [
L .
expansio :
cf .
F .
expansion .]
1 .
The act of expanding or spreading out ;
the condition of being expanded ;
dilation ;
enlargement .
[
1913 Webster ]
2 .
That which is expanded ;
expanse ;
extend surface ;
as ,
the expansion of a sheet or of a lake ;
the expansion was formed of metal .
[
1913 Webster ]
The starred expansion of the skies . --
Beattie .
[
1913 Webster ]
3 .
Space through which anything is expanded ;
also ,
pure space .
[
1913 Webster ]
Lost in expansion ,
void and infinite . --
Blackmore .
[
1913 Webster ]
4 . (
Economics &
Commmerce )
an increase in the production of goods and services over time ,
and in the volume of business transactions ,
generally associated with an increase in employment and an increase in the money supply .
Opposite of {
contraction }.
Syn :
economic expansion . [
1913 Webster PJC ]
5 . (
Math .)
The developed result of an indicated operation ;
as ,
the expansion of (
a b )^{
2 }
is a ^{
2 }
2ab b ^{
2 }.
[
1913 Webster ]
6 . (
Steam Engine )
The operation of steam in a cylinder after its communication with the boiler has been cut off ,
by which it continues to exert pressure upon the moving piston .
[
1913 Webster ]
7 . (
Nav .
Arch .)
The enlargement of the ship mathematically from a model or drawing to the full or building size ,
in the process of construction . --
Ham .
Nav .
Encyc .
[
1913 Webster ]
Note :
Expansion is also used adjectively ,
as in expansion joint ,
expansion gear ,
etc .
[
1913 Webster ]
8 .
an enlarged or extended version of something ,
such as a writing or discourse ;
as ,
the journal article is an expansion of the lecture she gave .
[
PJC ]
9 .
an {
expansion joint }.
See below . [
Colloq .
or jargon ]
[
PJC ]
{
Expansion curve },
a curve the co ["
o ]
rdinates of which show the relation between the pressure and volume of expanding gas or vapor ;
esp . (
Steam engine ),
that part of an indicator diagram which shows the declining pressure of the steam as it expands in the cylinder .
{
Expansion gear } (
Steam Engine ).
a cut -
off gear .
See Illust .
of {
Link motion }.
{
Automatic expansion gear }
or {
Automatic cut -
off },
one that is regulated by the governor ,
and varies the supply of steam to the engine with the demand for power .
{
Fixed expansion gear },
or {
Fixed cut -
off },
one that always operates at the same fixed point of the stroke .
{
Expansion joint },
or {
Expansion coupling } (
Mech . &
Engin .),
a yielding joint or coupling for so uniting parts of a machine or structure that expansion ,
as by heat ,
is prevented from causing injurious strains ;
as :
(
a )
A slide or set of rollers ,
at the end of bridge truss ,
to support it but allow end play .
(
b )
A telescopic joint in a steam pipe ,
to permit one part of the pipe to slide within the other .
(
c )
A clamp for holding a locomotive frame to the boiler while allowing lengthwise motion .
(
d )
a strip of compressible material placed at intervals between blocks of poured concrete ,
as in roads or sidewalks .
{
Expansion valve } (
Steam Engine ),
a cut -
off valve ,
to shut off steam from the cylinder before the end of each stroke .
[
1913 Webster ]
222 Moby Thesaurus words for "
expansion ":
access ,
accession ,
accomplishment ,
accretion ,
accrual ,
accruement ,
accumulation ,
acreage ,
addition ,
advance ,
advancement ,
aggrandizement ,
amplification ,
amplitude ,
appreciation ,
area ,
ascent ,
attenuation ,
augmentation ,
ballooning ,
ballyhoo ,
big talk ,
bigness ,
bloating ,
blossoming ,
blowing up ,
body ,
boom ,
boost ,
bottoming out ,
breadth ,
broadcast ,
broadcasting ,
broadening ,
buildup ,
bulk ,
burgeoning ,
burlesque ,
business cycle ,
business fluctuations ,
bust ,
caliber ,
caricature ,
circumfusion ,
continuum ,
cooling off ,
coverage ,
crescendo ,
crisis ,
depression ,
depth ,
development ,
developmental change ,
diameter ,
diffraction ,
diffusion ,
dilatation ,
dilation ,
dilution ,
dimension ,
dimensions ,
dispensation ,
dispersal ,
dispersion ,
dissemination ,
dissipation ,
distance ,
distension ,
distention ,
distribution ,
divergence ,
downturn ,
economic cycle ,
economic expansion ,
economic growth ,
edema ,
elaboration ,
elevation ,
emptiness ,
empty space ,
enhancement ,
enlargement ,
evaporation ,
evolution ,
evolutionary change ,
evolvement ,
evolving ,
exaggerating ,
exaggeration ,
excess ,
exorbitance ,
expanding economy ,
expanse ,
expatiation ,
explication ,
extension ,
extent ,
extravagance ,
extreme ,
field ,
flood ,
flourishing ,
flowering ,
fragmentation ,
furtherance ,
gain ,
galactic space ,
gauge ,
girth ,
gradual change ,
grandiloquence ,
greatening ,
greatness ,
growth ,
gush ,
height ,
heightening ,
high growth rate ,
hike ,
huckstering ,
hyperbole ,
hyperbolism ,
increase ,
increment ,
infinite space ,
inflation ,
inordinacy ,
interstellar space ,
jump ,
largeness ,
leap ,
length ,
low ,
magnification ,
magnitude ,
market expansion ,
mass ,
maturation ,
measure ,
measurement ,
mounting ,
multiplication ,
natural development ,
natural growth ,
nonviolent change ,
nothingness ,
outer space ,
overemphasis ,
overestimation ,
overkill ,
overstatement ,
peak ,
peaking ,
peppering ,
prodigality ,
productiveness ,
profuseness ,
progress ,
progression ,
proliferation ,
propagation ,
proportion ,
proportions ,
prosperity ,
publication ,
puffery ,
puffing up ,
radiation ,
radius ,
raise ,
range ,
reach ,
recession ,
recovery ,
ripening ,
rise ,
scale ,
scattering ,
scatterment ,
scope ,
sensationalism ,
shotgun pattern ,
size ,
slowdown ,
slump ,
snowballing ,
sowing ,
space ,
spatial extension ,
spattering ,
sphere ,
splay ,
spread ,
spreading ,
sprinkling ,
stretch ,
stretching ,
strewing ,
superficial extension ,
superlative ,
surface ,
surge ,
swelling ,
tall talk ,
touting ,
tract ,
travesty ,
tumescence ,
unfolding ,
up ,
upping ,
upsurge ,
upswing ,
uptrend ,
upturn ,
void ,
volatilization ,
volume ,
waxing ,
widening ,
width ,
working -
out
安装中文字典英文字典查询工具!
中文字典英文字典工具:
复制到剪贴板
英文字典中文字典相关资料:
Senior Center welcomes back John Williams after hospital stay Our sympathies also go out to Mary Weaver and her family who recently lost her daughter-in-law to cancer We were glad to see John Williams back home after spending several days in the hospital Sharon Fletchall has also been under the weather and stayed in for a few days It seems like everyone ends up with a cough that just lasts forever!
Solid Marble Heart Shaped Cheese Board or Platter from Williams-Sonoma . . . FOR SALE - Roanoke, VA - FOR SALE Solid Marble Heart Shaped Cheese Board or Platter from Williams-Sonoma Original owner Brand new in box Made in India Ca
Redding News | Times-tribune | Maryville Forum REDDING, Iowa — Megan Augustin and sons, Walker, Atlee and Tason from Denver, Colorado, visited at Charles and Becky Abarr’s last week and returned home on Friday
Recent Posts - Page 21,286 - JLA FORUMS Page 21286 of 49778 Go to page: Previous 1, 2, 3 21285, 21286, 21287 49776, 49777, 49778 Next
Redding News | Times-tribune | Maryville Forum Ginny Quick, Rebecca Smith and Carrie Main had lunch together on Monday and then went to Calvin Main’s bowling match at Lucky Lanes in Mount Ayr Ginny went to Garden Club in Afton on Friday The Methodist Action Club met on Wednesday night at the Redding UMC Sherry Davidson was hostess and served a delicious supper with a Valentine’s Day theme followed by a craft session Several members
Williams Sonoma Marble Brass 3 Tier Stand (dallas) $50 FOR SALE - Dallas - Forth Worth, TX - Gently used, in great condition See photos for current price as well as dimensions Cash only please Location: dalla
Council denies two short-term rental applications Wood said that Allen, Williams and Stephanie Campbell filed for the two seats with three-year terms Lipiec was the lone candidate to file for the two-year vacancy Council members appointed Marta Green to the Maryville Parks and Recreation board Green will serve the remainder of Rachelle Wilmes’ term which ends June 1
Recent Posts - Page 54,501 - JLA FORUMS Page 54501 of 54501 Go to page: Previous 1, 2, 3, 54499, 54500, 54501
Redding News | Times-tribune | Maryville Forum REDDING, Iowa — Ian and Jasper Abarr from Ames visited Charles and Becky Abarr over the weekend Isabelle Abarr from Kansas City was also a weekend visitor at the Abarrs’
Recent Posts - Page 53,123 - JLA FORUMS Page 53123 of 57229 Go to page: Previous 1, 2, 3 53122, 53123, 53124 57227, 57228, 57229 Next