roving frame meaning in English

三道粗纺机
三道粗纱机

Ball and roller bearing top rollers for ring spinning frames and for roving frames
环锭精纺机和粗纱机用滚珠和滚柱轴承顶端滚柱
This principle can be applied to both traditional and computerized roving frames
在现阶段，此原理可应用于电脑粗纱机上或传统粗纱机上，简单易行。
In this article is analyzed the principle to improve the productivity of the roving frame by use of centrifugal force with a calculation method to determine the highest spindle speed given out and explained with examples
摘要分析了离心力纺纱能提高粗纱机生产效率的原理，提出了确定最高锭速的计算方法，并举例说明。
Based on its use features of the soft and elastic rubber roller of free of treatment and through its application and experiment on the roving frame , this article has proved the ability of its application of this roller on the roving frame
摘要叙述了软弹性免处理胶辊的使用特性，通过在粗纱机上的应用实验，证明了无明显缠花、带花现象，加强了维持力，使粗纱和后道细纱的品质都能得到保证。