名词
中文翻译：无菌螺旋
同义词：
['sterile spiral', 'sterile coil']
例句：
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1.The bacteria in this soil are very likely to produce a sterile whorl of fungus.
这种土壤中的细菌很可能产生一个无菌螺旋的真菌。
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2. During the formation of the protoplanetary disk, the gaseous material may form a sterile whorl around the star.
在形成原行星盘的过程中，气体物质可能围绕恒星形成一个无菌螺旋。
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3. The study found that the structure of the whorl could be used to predict the stabilityof the system.
研究发现，螺旋结构可以用来预测系统的稳定程度。