DESIGN: a random control study.
设计：随机对照研究。
设计：病例-对照研究。
设计：前后对照研究。
设计：对照实验研究。
方法断面对照研究。
DESIGN: a randomized control study.
设计：随机对照研究。
DESIGN: Randomized case control study.
设计：随机对照研究。
DESIGN: A retrospective control study.
设计：回顾性研究。
DESIGN a golden standard control study.
标准对照。
DESIGN: a complete random control study.
设计：完全随机的实验研究。
DESIGN: a self - control study was conducted.
设计：前后对照研究。
DESIGN: a completely randomized control study.
设计：完全随机设计，对照实验研究。
DESIGN: Random control study based on patients.
设计：以患者为研究对象的随机对照研究。
DESIGN:A non-randomly control study was conducted.
设计：非随机对照实验研究。
DESIGN: a completely randomized case-control study.
设计：完全随机对照研究。
A case control study nested in cohort was conducted.
本文进行了一项队列内病例对照研究。
Neural tube defects; Case control study; Risk factors.
神经管畸形；病例对照研究；危险因素。
DESIGN: Completely randomized case-control study was adopted.
设计：完全随机对照实验研究。
DESIGN: Prospective case control study based on experimental animals.
设计：以实验动物为研究对象，前瞻性、对照研究。
Methods A random, double blind, and placebo control study was conducted.
方法采用随机双盲、安慰剂平行对照研究。
Study Design. Prospectie case-control study testing a new diagnostic method.
研究设计：为试验一种新的诊断方法而做的预期病例对照研究。
Inverted-pendulum is an ideal experimental object in intelligent control study.
倒立摆是智能控制的理想实验对象。
The methods of evaluation were mainly the control study(14.4%) and no control study(64.2%).
评价方法主要为无对照的研究（占64.2%）、有对照的研究（占14.4%）；
Methods Case control study and self-control study in Chinese herbal treatment group were conducted.
方法采用病例对照研究和中药治疗组自身前后对照研究。
The conclusion can provide the evidence for the in-process cutting control study using vibration signals.
文章的结论可为利用振动信号进行切削在线控制的研究提供依据。
The study says there must be a complete overhaul of air traffic control systems.
研究称必须对航空交通管理系统进行彻底的改革。
Study group and control group had isonitrogenous and isocaloric intake.
研究组和对照组所接受的氮量和热卡相同。
Study results appear in this month's issue of Tobacco Control.
研究成果刊登在了本月的《烟草控制》上。
The theory of Value -chain provides a method to study cost control of the enterprises.
价值链理论为研究企业的成本控制提供了一种有效的方法。
Were I a scientist, I would study how to control the rain.
如果我是科学家，我就会研究如何控制降雨。
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