英:/,reərɪ'fækʃən/ 美:/ˌrerɪˈfækʃn/
GRE
n. [聲] 稀疏;(氣體)稀薄
This is called a rarefaction and is represented by widely spaced dots.
這個區域稱為稀疏區,并用疏散的小點表示。
Objective: For observation and treatment of diabetes followed by rarefaction of bone.
目的:觀察和治療糖尿病伴隨骨質疏松。
Objectives: To study the changes in microvascular rarefaction of retinae in hypertensive rats and patients.
目的:了解自發性高血壓大鼠和高血壓患者視網膜微血管變化。
He believed that the changes things undergo could be explained in terms of rarefaction and condensation of air.
他相信物質的改變可以被解釋為一系列的氣體的稀釋和濃縮。
Rarefaction effect tends to make supersonic flows move smoothly, and to enlarge the influence domain of cylinder.
稀薄效應趨於弱化激波等超聲速流動結構,物體影響域增大。
rarefaction wave
稀疏波;膨脹波;餘波
n.|sparseness/tenuity;[聲]稀疏;(氣體)稀薄
rarefaction 是一個名詞,主要指物質變得稀疏、稀薄或密度降低的過程或狀态。這個詞源於拉丁語 rarefacere(使稀薄),常用於物理學(特别是聲學)和醫學領域。
物理學(聲學)中的核心含義:
醫學(放射學/影像學)中的含義:
總結關鍵點:
引用來源 (真實有效鍊接):
rarefaction 是一個多學科術語,核心含義指物質密度的減少或稀疏化,常見於物理學、聲學、醫學等領域。以下是詳細解釋:
該詞反義詞為compression(壓縮),常見於波動理論中描述周期性變化。如需更專業釋義(如石油領域),可參考詞典來源。
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