proportion parameter的用法和样例：
例句
- Parameter represents a location as a proportion of the distance along the gradient line.
参数将位置表示为沿渐变线距离的比例。 - The morphometric parameter that best correlated with endothelialization was the ratio of uncoered to total stent struts per section.
与内皮化关联最好的形态学参数是每个节段中未覆盖内皮部分占总支架支柱的比例。
