rarefaction
稀疏
常用释义
英音[ ˌreərɪˈfækʃ(ə)n ]
美音[ ˌrerəˈfækʃ(ə)n ]
基本释义
- n. [声] 稀疏；（气体）稀薄
例句
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1·This is called a rarefaction and is represented by widely spaced dots.这个区域称为稀疏区，并用疏散的小点表示。
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2·Objective: For observation and treatment of diabetes followed by rarefaction of bone.目的：观察和治疗糖尿病伴随骨质疏松。
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3·Objectives: To study the changes in microvascular rarefaction of retinae in hypertensive rats and patients.目的：了解自发性高血压大鼠和高血压患者视网膜微血管变化。
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4·He believed that the changes things undergo could be explained in terms of rarefaction and condensation of air.他相信物质的改变可以被解释为一系列的气体的稀释和浓缩。
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5·Rarefaction effect tends to make supersonic flows move smoothly, and to enlarge the influence domain of cylinder.稀薄效应趋于弱化激波等超声速流动结构，物体影响域增大。
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6·The classical elementary waves in Riemann solutions include rarefaction wave, shock wave and contact discontinuity.黎曼解涉及的经典基本波包括疏散波、激波和接触间断。
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7·After gaseous detonation reflects on the right wall, the right-traveling rarefaction waves accelerate the reflected shock.气相爆轰波在右壁面反射后，右行稀疏波加速反射激波。
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8·This paper presents an experimental technique of diaphragm bursting by virtue of the rarefaction wave in double driver shock tube.本文介绍了在双驱动激波管中运用稀疏波破膜的技术。
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9·Rarefaction effect on supersonic flow fields in the transition from near continuum to near free-molecule flow is analyzed numerically.从近连续流到近自由分子流，计算分析超声速流场的稀薄效应。
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10·The result indicated that the retinal pigment epithelium cytoplasmic rarefaction or condensation, rounded abnormalities of basal infoldings were present.结果表明，视网膜色素上皮有胞浆结构不均，基底膜皱折变圆不规则。
网络释义
- rarefaction wave : 稀疏波；膨胀波；余波
同义词
n.
[声]稀疏；（气体）稀薄
同根词
词根：
rare
rare
adj
稀有的；半熟的；稀薄的
rarefied
adj
稀薄的；纯化的
rarified
adj
纯净的；稀薄的
rare
adv
非常；极其
rareness
n
稀薄；稀罕；珍奇
rarified
v
使变稀薄（rarify的过去式）
rare
vi
用后腿站起；渴望
rarefy
vi
变稀薄；纯化