1·Unfortunately, it is difficult to risk stratify most patients based on available data but it is a goal to strive for in the future.
不幸的是，根据掌握的绝大多数患者的数据，风险分层都有困难，但这是我们将来努力的目标。
2·The estimator based on kernel principal component extraction requires to stratify the training samples of interested signals with respect to their respective frequencies.
基于多层核主成分提取估计器需要将调制信号的训练样本根据各自的频率进行分层。
3·A stratify sampling algorithm for extracting classification rules is proposed in the dissertation.
提出一种面向分类规则提取的分层抽样算法。
4·We can use genetics to stratify patients in clinical development.
我们可以在临床开发中采用遗传学进行患者分层。
5·Objective: to stratify interventions for diabetes according to their economic impact and the most economy impact and the most economically attractive interventions for diabetes is identified.
前言：目的：根据干预的经济影响将糖尿病干预研究分层，同时判断在经济学方面最有吸引力的糖尿病干预研究。