设计：完全随机分组设计，对比观察。
DESIGN: Complete randomized groups and controlled comparison.
设计：完全随机分组设计，空白对照实验。
DESIGN: Groups are divided randomly and experiments are made under blank conditions.
设计：随机分组、空白对照实验。
设计：采用随机分组、安慰剂对照实验研究。
设计：完全随机、双肓法分组研究。
DESIGN: a complete randomized double blinded grouping study was conducted.
设计随机分组实验研究。
设计：随机区间分组设计。
研究设计和方法对于患有慢性足部溃疡的糖尿病患者，超高压氧气疗法（HODFU）研究采用了随机分组、单中心、双盲、安慰剂对照的临床试验。
RESEARCH DESIGN AND METHODS The Hyperbaric Oxygen Therapy in Diabetics with Chronic Foot Ulcers (HODFU) study was a randomized, single-center, double-blinded, placebo-controlled clinical trial.
详细结果如下：试验一：采用随机分组对照试验设计，选用体重基本一致的30日龄小尾寒羊公羊15只，随机分成3个处理，每个处理5只。
The main results showed as follows: Trial one: 30-day age, 15 birds male small-fat-tail sheep according to body equal completely randomized design, were divided into 3 groups each with 5.
详细结果如下：试验一：采用随机分组对照试验设计，选用体重基本一致的30日龄小尾寒羊公羊15只，随机分成3个处理，每个处理5只。
The main results showed as follows: Trial one: 30-day age, 15 birds male small-fat-tail sheep according to body equal completely randomized design, were divided into 3 groups each with 5.
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