N the act or process of making less dense or the state of being less dense 疏松
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。
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。
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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