spiral

• Smoke spiralled up .
  烟盘旋上升。
• These rolls are corrugated cylinders, usually of the spiral type .
  粉碎辊是波纹式滚筒，还常是螺旋割纹式。
• Experts watch the spiral development in industry with keen interest .
  专家们以很大的兴趣观察工业的螺旋式的发展。
• A number of silver discs arranged around a central helix to form a spiral .
  这些银圆片围着中心螺旋线排成一个螺旋体。
• Twisting arises in boards through the presence of spiral or interlocking grain .
  翘曲多发生在螺旋或交错纹理的板材中。
• A spiral deformation occured in the lower part of the young leaf enclosed in the sheath .
  在叶鞘裹住的幼叶下部呈现螺旋状。
• Spiral galaxies are considered to be gravitationally bound configurations of stars .
  旋涡星系被认为是由恒星组成的引力束缚系统。
• A changed particle moves along the lines of force of a magnetic field, spiraling as it goes .
  带电粒子沿磁力线运动时就会发生回转。
• A neat solution of the quadrature problem can be achieved with the spiral of archimedes .
  使用阿基米德螺线可以轻松解决求积分的问题。
• Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness .
  旋涡星云因为非常暗，难以得到它们的清晰的光谱。