在一个双盲测试中，有了一些进步。

In a double-blind trial, there were some improvements.

《柯林斯英汉双解大词典》

预防性大剂量氨甲环酸在脊柱外科中的疗效和安全性：一个前瞻性，随机，双盲，安慰剂对照的研究。

Efficacy and Safety of Prophylactic Large Dose of Tranexamic Acid in Spine Surgery: a Prospective, Randomized, Double-Blind, Placebo-Controlled Study.

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这些患者有轻到重度痤疮，是基质对照随机双盲多中心3期临床试验的一个亚组。

These patients had acne vulgaris ranging from mild to severe and were a subgroup of patients from phase 3, randomized, double-blind, vehicle-controlled, multicenter clinical trials.

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