DESIGN: a random control study.
设计：随机对照研究。
DESIGN: a complete random control study.
设计：完全随机的实验研究。
DESIGN: Random control study based on patients.
设计：以患者为研究对象的随机对照研究。
Methods A random control study was made by supperselected intraaterial thrombolysis in 30 cases and venous thrombolysis in 32 cases respectively.
方法对急性脑梗死患者，随机进行超选择性动脉灌注尿激酶溶栓治疗30例和单纯静脉溶栓治疗32例对照研究。
The panel study involved a random sample of 895 households from over 50 000 enrolled in a cash-for-work programme between September and December 2007 and 921 similar control households.
我们从2007年9月和12月登记在现金薪酬项目的50,000多个家庭中抽取了895个家庭作为随机样本，还选择了921个类似的对照家庭，然后对它们开展了小组研究。
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。
DESIGN: Non random and self control experimental study.
设计：非随机自身对照实验性研究。
Design: Complete random design and control experimental study based on the experimental animals.
设计：以实验动物为研究对象的完全随机设计，对照实验研究。
Given by simulation, staff can directly control the motor speed random for the study of motor provides great convenience.
通过模拟给定，工作人员可以直接随意的控制电机速度，为研究电机提供了很大方便。
Methods: Clinical observation on change of zinc in serum of 186 cases were adopted with methods of random, single blind, parallel and control study of positive medicine.
方法：采用随机、单盲、阳性药平行对照方法对186例患者治疗前后血清锌的变化进行临床观察。
Methods: Patientswere divided into study group and control group by using double-random method.
方法：将病例分为研究组及对照组。
Methods Clinical observation of 186 cases was conducted with methods of random, single blind, parallel and control study of positive medicine.
方法采用随机、单盲、阳性药平行对照方法，对186例高脂血症患者进行临床观察。
Provides a way to simulate waves in real-time according to random-wave-spectrum. It can be used to study the performances of dynamic positioning ship and control system under different waves.
提出一种根据随机海浪频谱来实时模拟随机海浪的方法，它可以用于研究动力定位船舶及其控制系统在不同海况时的性能。
The study employed a quasi-experimental design of a non-random posttest control group;
本研究使用了一个定向控制的类似实验的设计来进行。
MethodsThe research is prospective study, semi-random control trial was conducted.
研究方法本研究为前瞻性研究，采用半随机对照法。
DESIGN: a random control vertical study.
设计：完全随机对照的纵向性研究。
DESIGN: a random control vertical study.
设计：完全随机对照的纵向性研究。
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