中國棉農用琴弦彈棉花時，美國就已經大規模的自動化紡織了。

來源: tzbcwbc 於 2013-11-12 10:42:13 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.