查询词典 sampling

The first CATI system was developed in America, in the middle of 70's. They used CATI to help them to design survey, and to perform the probability sampling.

CATI系统发展最早在美国，约从1970年代中期开始，他们将统计中的机率抽样以电脑程式表现，藉以提高调查回收率。

2 Disposable safe machine blood sampling device: fill the cavity of the blood sample device with bacterial endotoxin check water, and cover both sides. Put it into a 37OC±1OC thermostat for two hours, then take it out and put the probational liquid into a sterile and corked glass container free of pyrogen.

2.4.2一次性使用安全机用采血器：细菌内毒素检查用水，注满采血器内腔，两端封闭，置37OC±1OC恒温箱中保温2小时，取出后将供试液汇集至一无菌无热原带具塞玻璃容器内。

Program design and electric parameter sampling are studied in software aspect.

软件方面对程序设计和电量参数的采样技术进行了研究。

Sampling of propellants under typical operating conditions may be necessary to obtain valid capacitance information.

为了获得有效的容量资料，在典型的工作条件下对推进剂取样是很必要的。

Proper sampling frequency not only can fit the demands of quality monitoring but also can decrease the workload and economize the property.

确定合适的采样频率，即能满足监测目的的要求，又可以减少工作量，节省物力财力。

The simulation results show that the proper selection of sampling frequency numbers and time interval can keep the simulation process fast, efficient and precise, which overcome the shortcomings of long time cost and low precision in the traditional method.

仿真结果表明，适当选取采样频率点数与时间间隔，可以在保证模拟功率谱计算精度的同时，具有快速高效的特点，弥补了传统方法在模拟三维风速时耗时长、精度低的缺点。

According to the principle of proportional allocation,a three-stage sampling survey was set up.

应用按比例抽样原理，建立三级抽样框，抽样比为15％的问卷抽样调查。

Methods Proportional to Size Sampling method was employed and face to face interview was used to collect the information.

采用分层、三阶段与规模成正比的抽样方法获得调查对象，调查员入户面对面进行问卷调查。

After probabilities proportional to size sampling, 1422 students and 2737 their parents were included in this study. Occupational history, history and risk factors of hypertensive diseases were collected by questionnaires.

以随机抽样的方式，从台北市的全体国中学童产生样本，共获得1422位学生和2737位学生父母亲为研究样本，探讨其职业与高血压性疾病的相关资料。

According to the survey for the whole country to the provinces, autonomous regions and municipalities for the whole meeting, to take layered, multi-stage cluster probability sampling method proportional.

据介绍，这次调查以全国为总体，以各省、自治区、直辖市为次总体，采取分层、多阶段、整群概率比例的抽样方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。