yarn undulation of warp direction是什么意思，yarn undulation of warp direction的翻译，yarn undulation of warp direction音标、读音、用法和例句

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yarn undulation of warp direction是什么意思，yarn undulation of warp direction的翻译，yarn undulation of warp direction音标、读音、用法和例句_果味酸柯林斯词典