A thin cyst Paries, is simple squamous epithelium and containing crystal serous fluid inside the cyst.
囊壁薄，为单层扁平上皮，囊内含清亮浆液性液体。
The bristle assemblies give serous fluid momentum step by step to form a rotary flow and to yield filtration pressure.
针轮由小及大逐渐向浆液传递动量，启动旋流，产生离心过滤压力。
Serous pericarditis is marked by fluid collection. Rarely, the fluid collection may be large enough to cause tamponade.
浆液性心包炎以分泌液体聚集为特征，大量浆液渗出时就可能引起心包填塞。
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