例句與造句

1. The theme in the paper is to key parts of project of study and development on original non - frictional continuous action mechanical variable speed drives , which is supported by chongqing municipal science and technology committee schedule projects , it will make good foundation in relative technology research domains
   本論文研究內容是重慶市科委科技攻關項目“新型非摩擦式連續(xù)作用機械無級變速器的研制與開發(fā)”工作的一個重要部分，它將為新型非摩擦式連續(xù)作用機械無級變速器產品的開發(fā)打下良好的基礎。
2. It's difficult to find mechanical variable speed drive in a sentence. 用mechanical variable speed drive造句挺難的