詞語：reduction
reduction是什麼意思
簡明英漢詞典
reduction
[ri5dQkFEn]
n.
減少, 縮影, 變形, 縮減量, 約簡
基本詞義
Reduction
n.
1.減少；縮小；降低 2.縮圖；縮版
美國傳統詞典[雙解]
reduction
re.duc.tion
AHD:[r1-d?k「sh…n]
D.J.[ri6d(k.*n]
K.K.[r!6d(k.*n]
n.Abbr. red.（名詞）縮寫 red.
(1)The act or process of reducing.
減少：減少的行為或過程
(2)The result of reducing:
減少的結果：
a reduction in absenteeism.
缺席人數的減少
(3)The amount by which something is lessened or diminished:
減少量：某物被縮短或減少的量：
a reduction of 12 percent in violent crime.
嚴重犯罪率下降12個百分點
(4)Biology The first meiotic division, in which the chromosome number is reduced.Also called reduction division
【生物學】 減數分裂：細胞第一次染色體數目減少大減數分裂也作 reduction division
(5)Chemistry
【化學】
(6)A decrease in positive valence or an increase in negative valence by the gaining of electrons.
還原：通過獲得電子而造成正價電子減少和負價電子增多
(7)A reaction in which hydrogen is combined with a compound.
氫化反應：氫與化合物結合的反應
(8)A reaction in which oxygen is removed from a compound.
還原反應：把氧從化合物中分離的反應
(9)Mathematics
【數學】
(10)The canceling of common factors in the numerator and denominator of a fraction.
約分：削去分數中分子和分母的公約數
(11)The converting of a fraction to its decimal equivalent.
分數化成小數：把分數寫成與之相等的小數
(12)The converting of an expression or equation to its simplest form.
簡化方程式：把表達式或方程式化至最簡的形式
語源
(1)Middle English reduccion [restoration]
中古英語 reduccion [重新設立]
(2)from Old French reduction
源自 古法語 reduction
(3)from Latin reducti?} reducti?n-
源自 拉丁語 reducti?} reducti?n-
(4)from reductus [past participle of] red?cere [to bring back] * see reduce
源自 reductus [] red?cere的過去分詞 [收回] *參見 reduce
繼承用法
reduc「tional
adj.（形容詞）
現代英漢詞典
reduction
[rI5dQkF(E)n]
n.
(1)減少；縮小；降低
(2)縮圖；縮版
現代英漢綜合大辭典
reduction
[ri5dQkFEn]
n.
(1)縮減[小], 減小[少, 低, 速, 壓]
(2)降級[職], 降低
(3)衰減
(4)壓縮, 縮小了的東西
(5)變化, 變形
(6)弄碎, 分解
(7)換算, 折合
(8)歸納, 整理
(9)降服, 陷落
(10)簡化, 化簡
(11)【化】還原(作用);【醫】復位術;【攝】減薄
a 10
％
reduction
九折
the reduction of armament
裁軍
繼承用法
reductional
n.
習慣用語
reductionto absurdity
【邏】歸謬法(為了證明某一命題的真實, 而證明其對立面為謬誤的方法); 反證論法
特殊用法
acetylene reduction
乙炔還原作用
acid reduction
酸性還原作用
across-the-board tariff reduction
全面降低關稅
agreed reduction
議定的裁減
alkaline reduction
鹼性還原
carbon reduction
碳還原(法)
carbon thermal reduction
碳熱還原
carbonyl reduction
羰基還原
catalytic reduction
催化還原
cathodic reduction
陰極還原
chromosome reduction
染色體減數
color reduction
退色
cold reduction
(1)(減厚)冷軋
(2)冷壓縮
(3)冷碾壓, (管子)冷減徑
copper reduction
銅還原
cost reduction
成本降低
critical reduction
臨界壓縮量, 臨界變形程度
false reduction
假減數
field reduction
場衰減
final data reduction
最後結果處理
final drive reduction
最終傳動減速
hydrogen reduction
氫還原作用
incentive reductions
鼓勵性減稅
incomplete reduction
不完全還原
indirect reduction
間接還原
interference reduction
【電子】干擾減小
internal reduction
分子內還原作用
lithium aluminium hydride reduction
氫化鋁鋰還原
load reduction
負荷減低
local pressure reduction
局部減壓
low grade reduction
低級粗粒粉磨碎
magnesiothermic reduction
鎂熱還原
mathematical reduction
數學簡化
metallic reduction of fluorides
氟化物金屬熱還原
metallothermic reduction
金屬熱還原
neutral reduction
中性還原
nitrate reduction
硝酸還原作用
nitrobenzene reduction
硝基苯還原
noise reduction
噪聲降低
off-line data reduction
獨立數據處理
partial reduction
部分還原
percent reduction
(1)還原率
(2)壓縮率
percentage reduction of area
面積收縮率
percentage reduction of diameter
直徑縮減率
performance reduction
性能下降
powder reduction
粉末還原
power reduction
功率減小
pressure reduction
減壓
price reduction
削價
proportional reduction
按比例減低
radiation-chemical reduction
輻射化學還原
radical reduction
大減價
speed reduction
(1)減速
(2)減速裝置
temperature reduction
降溫
threshold reduction
閾值減低
total gear reduction
齒輪總減速
vacuum reduction
真空還原
vacuum-thermal reduction
真空熱還原
wall thickness reduction
(1)壁厚減薄
(2)壁厚減薄率
reduction of centre
歸心計算
reduction of class
降級
reduction of cost
降低成本
reduction of fraction
約分
reduction of fractions to a common denominator
通分(母)
reduction of fused salts
熔鹽電解還原
[七國語言]英漢地質大詞典
reduction
減少, 縮減;還原
[七國語言]英漢地理大詞典
reduction
還原, 縮小
[七國語言]英漢電子大詞典
reduction
減少
[七國語言]英漢化學大詞典
reduction
還原
[七國語言]英漢機械大詞典
reduction
還原;壓下量
[七國語言]英漢機械工程大詞典
reduction
減少
[七國語言]英漢建築大詞典
reduction
縮少, 縮減
[七國語言]英漢礦業大詞典
reduction
減少, 縮小;還原
[七國語言]英漢農業大詞典
reduction
還原
[七國語言]英漢輕工業大詞典
reduction
還原
[七國語言]英漢生物學大詞典
reduction
減數, 還原
[七國語言]英漢數學大詞典
reduction
簡化
[七國語言]英漢信息大詞典
reduction
簡化, 約化
[七國語言]英漢冶金大詞典
reduction
還原
[七國語言]英漢醫學大詞典
reduction
歸鈉, 還原
英漢雙解計算機詞典
reduction
縮小率,約簡
1.In micrographics, a measure of the number times the linear dimensions of an object are reduced when photographed. The reduction is generally expressed as 1︰16,1︰24.
在縮微圖形學中,照相時,對目標物體線性尺度縮小倍數的量度。通常表示為1︰16,1︰24。 2.In a document copying machine, a copyon a smaller scale than 1︰1 to the original. | 在資料複製機中,比原件1︰1的比例尺度還要小的縮小複製本。 3.A process by which data are condensed. | 一種對數據進行壓縮的處理過程。 4.參閱data reduction, reenlargement。
美國傳統詞典
reduction
re.duc.tion
AHD:[r1-d?k「sh…n]
D.J.[ri6d(k.*n]
K.K.[r!6d(k.*n]
n.Abbr. red.
(1)The act or process of reducing.
(2)The result of reducing:
a reduction in absenteeism.
(3)The amount by which something is lessened or diminished:
a reduction of 12 percent in violent crime.
(4)Biology The first meiotic division, in which the chromosome number is reduced.Also called reduction division
(5)Chemistry
(6)A decrease in positive valence or an increase in negative valence by the gaining of electrons.
(7)A reaction in which hydrogen is combined with a compound.
(8)A reaction in which oxygen is removed from a compound.
(9)Mathematics
(10)The canceling of common factors in the numerator and denominator of a fraction.
(11)The converting of a fraction to its decimal equivalent.
(12)The converting of an expression or equation to its simplest form.
語源
(1)Middle English reduccion [restoration]
(2)from Old French reduction
(3)from Latin reducti?} reducti?n-
(4)from reductus [past participle of] red?cere [to bring back] * see reduce
繼承用法
reduc「tional
adj.
[名詞委審定]英漢化學名詞(1991)
reduction
還原
[名詞委審定]英漢數學名詞(1993)
reduction
歸約
[名詞委審定]英漢醫學名詞(六, 外科, 1997)
reduction
復位術
英漢船舶大詞典
reduction
n.環量減額因數,還原,換算
朗文英漢綜合電腦詞典
reduction
簡化，還原；減少；【軟】歸約[RED]
英漢電信大詞典
reduction
n.縮減,簡化
英漢地質大詞典
reduction
n.減少,縮減,降低
英漢法學大詞典
reduction
n.減輕 ,降低
英漢紡織大詞典
reduction
n.還原,減速,減少
英漢廣播大詞典
reduction
n.縮制處理
英漢航海大詞典
reduction
n.還元,環量減額因數
英漢環境大詞典
reduction
n.還原作用,減少,減壓
英漢航空大詞典
reduction
n.減小,減少
英漢化學大詞典
reduction
n.減少,壓縮,簡化
英漢海運大詞典
reduction
改正量，修正簡化，通分，減少，縮小，減縮，減速，折算，還原，提煉，換算，變換，訂正(量)，化簡，縮減，降低，衰減，折扣
基本詞義
reduction
減少，減縮，降低減速換算，折算還原簡化，通分衰減
基本詞義
reduction
換算，變換，訂正(量)化簡，縮減，降低，衰減，折扣
基本詞義
reduction
減少，縮小，減縮，降低減速換算，折算還原，提煉
英漢經貿大詞典
reduction
n.還元
英漢計算機大詞典
reduction
n.減少(壓縮,簡化
英漢機械大詞典
reduction
n.減少,縮減
英漢建築大詞典
reduction
n.縮減,減少,簡化
英漢農牧林大詞典
reduction
n.簡化
英漢能源大詞典
reduction
n.還原,對比,減速,減少,縮減,降低;n.減少,壓縮,簡化
英漢汽車大詞典
reduction
n.還?
英漢水利大詞典
reduction
n.減少,縮減,簡化
英漢消防大詞典
reduction
還原(作用)
英漢心理學大詞典
reduction
減少
基本詞義
reduction
還原
英漢冶金大詞典
reduction
n.還原比,破碎比;n.減少,降低
英漢醫學大詞典
reduction
n.復位,復位術
英漢中醫大詞典
reduction
n.瀉,復位,整復術