例句與造句

1. Pretreatment technique of cool wool ramie complex yarn
   苧麻復(fù)合紗的前處理工藝研究
2. The development of wool ramie complex yarn by parallel spinning
   苧麻平行紡復(fù)合紗的開發(fā)
3. It's difficult to find complex yarn in a sentence. 用complex yarn造句挺難的