two-step spinning process
two-step spinning process
两步纺丝法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Using NaSCN as solvent, flat acrylic fiber was produced by two-step wet spinning process. The selection of spinneret shape and the optimization of process conditions were discussed.
采用硫氰酸钠为溶剂，湿法二步法工艺生产扁平腈纶，探讨了喷丝板的选型和生产工艺的优化。
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