例句與造句

1. Despite providing an enormous gain in worker productivity, the Chinese spinning wheel fell into disuse over the subsequent centuries and was completely unknown by the 17th century, whereas the mechanical automation of spinning in Europe in the 18th century ( from manual spinning wheel precursors of the 13th century ultimately sourced from Asia Minor ) led directly to a process of technical refinement and engineering improvements that resulted in the Industrial Revolution and widespread mechanization of production of goods beyond yarn.
2. It's difficult to find manual spinning in a sentence. 用manual spinning造句挺難的