名词
中文翻译：球面螺旋
同义词：
['spherical screw', 'spherical helix', 'spherical screw thread']
例句：
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1. The spherical helix is a crucial component in the designof many mechanical systems.
球面螺旋是许多机械系统设计中的关键部件。
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2. Thespherical helix is used tocreate a smooth and uniform surface on theinner wall of the pipe.
球面螺旋用于在管道内壁上创建光滑且均匀的表面。
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3. The spherical helixis an important tool for measuring the lengthof a curved surface.
球面螺旋是测量曲线表面长度的重要工具。