英:[əˌtenjʊ'eɪʃn]
美:[əˌtenjʊ'eɪʃn]
英:[əˌtenjʊ'eɪʃn]
美:[əˌtenjʊ'eɪʃn]
n.
变薄
弄细
稀薄化
减少
词根:attenuated
adj.attenuated [生物][物] 衰减的;瘦长的
n.attenuator [电子] 衰减器;[生化] 弱化子
v.attenuated 使减弱;使变细;稀释(attenuate的过去分词)
noun
the act or process of attenuating something or the state of being attenuated: such as
a lessening in amount, force, magnitude, or value : weakening
Sound can travel thousands of kilometers in this planar acoustic waveguide with little attenuation.—David Ritchie
a reduction of severity or virulence : a decrease in the pathogenicity of a microorganism or in the severity of a disease
This virus grew well in tissue culture, with only limited temperature sensitivity as a marker of possible attenuation.—Peter F. Wright
diminution of thickness
The detailing of the doorway, the narrowness and attenuation of the columns of the portico, and most especially the paneling and ornamentation in the interior … bespeak the neoclassical, somewhat similar to the plaster work found in Baltimore interiors.—Jessie Poesch
attenuation coefficient[电]衰减系数
noise attenuation噪声衰减
sound attenuation消音,声衰减
signal attenuation信号衰减
attenuation constant衰减常量;减幅常数
power attenuation功率耗损
attenuation factor衰减因数
acoustic attenuation声衰减
attenuation curve衰减曲线
attenuation measurement衰减测量,减弱测定
15世纪初,用于人,“消瘦”; 用于饮食,“减少”,源自拉丁语 attenuationem(主格 attenuatio)“减少”,动作名词,来自 attenuare 的过去分词词干“变薄,减少,减弱”,来自 ad 的同化形式“到”(参见 ad-) + tenuare “变薄”,来自 tenuis “薄”(源自 PIE 词根 *ten- “拉伸”)。 “使密度减少”的一般意义始于1590年代; 具体指电流始于1838年。
衰减
稀释
减弱,减毒:指致病微生物的毒力减低,通常采用的方法是使之对另一宿主或不同的培养基产生适应性变化
衰减:当通过组织或其他物质时,辐射束能量减少的过程,参见absorption
衰减
减毒作用
減毒作用
弱化作用
减毒作用
衰减
衰减
衰减
(1)电功率、电磁功率或声功率在两点之间的降低。(2)以规定的形式,用两点功率之比,或与功率有关的量之比值来表示的功率降低。
弱化[作用]
又称“衰减作用”。降低细菌操纵子转录效率并提前终止转录的一种调控机制。
衰减
The first known use of attenuation was in 1559
attenuationnoun
a decrease in the pathogenicity or vitality of a microorganism or in the severity of a disease
1 Ultrasonic attenuation capacity of cellular Al alloy foam were studied.
研究了闭孔泡沫铝合金孔结构参数对其超声衰减性能的影响.
2 The flaws and limits inherent in overexposure are boredom and attenuation of message — not weakening of power.
3 Express the factors resulting in the attenuation of acoustic waves.
叙述引起音波衰减的因素.
4 But its extreme attenuation is otherworldly, while his raised heel and outstretched arms imply the miracle of flight.
5 One is attenuation control mode and the other is power control mode.
一种是衰减比例控制模式,另一种是功率控制模式。
6 Some (Apple included) have pointed out that all phones suffer some signal attenuation when held near the antenna.
一些人(包括苹果公司)指出,只要握在天线附近,所有的手机都会出现信号衰弱的问题。
7 There’s a handy two-way attenuation switch so you can adjust the input sensitivity depending on the audio source you’re using.
8 The attenuation distance and transmittance are connected together, they influence each other.
衰减距离attenuation) 和能见度(transmittance)是联系在一起的, 并相互影响.
9 They also performed experimental tests and mathematical modeling of sound propagation and attenuation through walls and windows.
10 The filter selectivity and stopband attenuation can be easily specified or controlled.
所设计滤波器的选择性和阻带衰减可预先给定并易于控制。
11 After all, tidal flats are important foraging areas for birds and contribute to wave attenuation.
12 So as the frequency increased, the attenuation decreased.
13 Lasers operate in space with much lower risk of beam attenuation when compared with laser weapons fired within the earth’s atmosphere.
14 The point of degradation, due to attenuation or distortion, at which a signal becomes unusable.
由于衰减或失真使得信号变得不能使用的那个退化点.
15 Furthermore, the natural attenuation remedy called for institutional controls such as deed restrictions to prevent the addition of wells around it.
16 If the participants held their partners’ hand during the experiment, their brain regions associated with fear attenuation were activated.
17 He soon showed that by distributing the line's inductance uniformly, it was possible to diminish both the signal's attenuation and its distortion.
18 Ultrasonic transmission attenuation characteristic in muscular tissue is discussed in this paper.
探讨超声对肌肉组织超声传输特性.
19 The Color, Multiplier and Attenuation parameters can all be animated over time.
颜色, 放大器和减弱器都可以超时绘制.
20 Attenuation is the result of two processes: scattering and absorption.
衰减是两个过程的结果:散射和吸收。
1 衰弱
debile donsie broken delicate gone wasted helpless infirm bedridden seely doddery doddered astheny labefaction hyposthenia waste weakness breakdown relaxation decay breakup wilt sinking fading declination prostration debility asthenia decrepitude marasmus lose wear sink collapse fade lag faint ebb falter droop languor crock distress wreck wither prostrate debilitate emaciate enfeeble extenuate unstring depauperate come apart at the seams bring low marantic awane low floppy faded feeble worn-out flaccid flagging broken-down effete enfeebled unstrung puling weakish asthenic down infirmly infirmness exinanition enervation enfeeblement languishment break weaken wane lower enervate devitalize
2 消瘦
poor lean haggard shilpit tabefaction emaciation marasmus tabes peak pine droop waste pinch gaunt emaciate macerate extenuate
4 稀释
dilute dilution attenuate attenuant small diluent reduce cut extend whack distemper deconcentrate diluted dilutedly dilutedness rarefaction attemper
7 减弱
sagging attenuated abatement fall-off falling-off moderate subside falter slacken blunt mute attenuate constrict muffle deaden imperfect fall flag lower sink slack languish relent break discount soften subdue wither emaciate emasculate geld unbrace
8 减少
subtractive peaked waney off loss decrease reduction slash rebate shrinkage abatement letdown diminution fall-off peak sink ramp dull diminish slack lessen wane dwindle languish whittle abate downhold down-point reduce limit shake relax shed relieve shave shorten impair lighten soothe deplete dampen slacken emaciate retrench bate minish falling off
9 减毒
10 弄细