Something, such as the thread of a screw or the spiral condenser in a still, that resembles a worm in form or appearance.
状的物品某物，如螺旋线或蒸馏器的螺旋冷凝器，在构成或外表上像蠕虫。
On the base of both consideration of heat transfer performance and resistance, the optimization and research are carried out on single spiral duct double pipe condenser.
本文在综合考虑传热性能和摩擦阻力等因素的基础上，对单螺旋槽套管式冷凝器的结构进行了优化和研究。
The spiral bands are basically equal in length to a condenser heat-exchange straight pipe and are inserted in the condenser straight pipe.
螺旋纽带与凝汽器换热直管道基本等长并插装在凝汽器直管道内。
The spiral bands are basically equal in length to a condenser heat-exchange straight pipe and are inserted in the condenser straight pipe.
螺旋纽带与凝汽器换热直管道基本等长并插装在凝汽器直管道内。
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