The invention of the solenoid provided immediate concrete evidence of this idea.

螺旋管线圈的发明为这种看法直接提供了具体证据.

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Loss of steam is a major factor impairing its heat exchange efficiency.

螺旋管换热器是一种新型高效换热器,蒸汽流失是影响其换热效率的重要因素.

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A reliability study on design, confirmation and expansion of rifled tube hydraulic plug.

水冷壁内螺旋管水压胀塞的设计 、 验证及胀塞的可靠性研究.

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Loopy curved pipe was better than single curved pipe to profiles of particle concentration phase separation.

多圈螺旋管能够达到比单圈螺旋管更好的有利于分离的颗粒相浓度分布.

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The two's spiral groove can coordinate to form the approximate circular section the spiral tubular channel.

二者的螺旋槽能配合形成近似圆形断面的螺旋管状通道.

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