例句與造句

1. Improving the fermentation technique , cell crash and high efficiency extraction and distillation technology are the prerequisites for commercial production of - carotene
   -胡蘿卜素工業(yè)化生產(chǎn)的前提是解決好發(fā)酵工藝、細(xì)胞破碎技術(shù)及高效提取純化技術(shù)。
2. It's difficult to find efficiency extraction in a sentence. 用efficiency extraction造句挺難的