英语语法分析

Determining the stage of colorectal cancer often requires a multimodality, multistep imaging approach.

确定结直肠癌的分期通常需要多形式、多步骤的影像手段。

Because of the multimodality of its autocorrelation function, it makes acquisition and tracking more challenging.

由于其自相关函数的多峰性，将增加这种信号的捕获难度和误跟踪的可能性。

The clinical data and multimodality therapy effect of 27 patients of pulmonary metastases were analysed retrospectively.

方法对27例肺转移瘤病人的临床资料和综合治疗效果进行回顾性分析。