Construction involves the following basic steps. The fiber web or matt, prepared using either carding, garnetting, or air laying techniques, is fed into a machine equipped with groups of specially designed needles.是什么意思_Construction involves the following basic steps. The fiber web or matt, prepared using either carding, garnetting, or air laying techniques, is fed into a machine equipped with groups of specially designed needles.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句