采用吸风装置连续采料，大大提高环境卫生。
Continuous borrowing suction device used material, greatly improves sanitation.
FA478还增加了巡回式吹吸风装置，使粗纱条干均匀度明显提高。
FA478 increases the itinerancy pneumatic suction motion, it makes the roving yarn evenness to improve.
本实验主要采用静电吸风装置，在不同电压下测生条的质量，以确定静电压多大有利于成纱质量的提高。
By using electrostatic induced-draft device in the experiment, the qualities of silver were tested under different voltages in order to decide the best voltage for the improvement of cotton yarn.
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