转曲用英文怎么表达

　　在显微镜下，麻纤维显示出节痕和竖纹，棉纤维显示出天然转曲和网纹。

　　Under a microscope, joint spots and vertical lines may be observed on ramie fibre and natural twist and netting lines on cotton fibre.

　　从理论上介绍了纱线强力的构成和影响因素，并通过实验研究了棉纱强力与其天然转曲数、短绒率之间的关系。

　　This paper introduces its composition and the factors affecting it in theory, furthermore, makes a study of the relationship between the strength of a cotton yarn and its number of natural convolution, its rate of short fibres by the experiment.

　　Psychological twists perk up an otherwise predictable story line.

　　心理转折使原本老套的故事情节变得生动有趣。

　　The surprise twists in the storyline are the film's greatest strength.

　　该影片最精彩之处就是剧情的曲折离奇。

　　You must signal which way you are going to turn.

　　你要朝哪个方向转，必须发出信号。

　　Whether we need more food depends on how many people turn up.

　　我们是否需要更多的食物，这要视到场人数而定。