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- primary sampling unit 一级抽样单位,一次取样单,一次抽样单位,一次取样单位,初步抽样单位
- variance between primary sample units 初级抽样单位间的方差
- variance within primary sample units 初级抽样单位内的方差
- primary sample unit 初级抽样单位
- Every sampling unit can be certain length, also can be unit of particular area, bulk or cubage, quality or quantum of time. 每个取样单位可以是一定长度，也可以是一定面积、体积或容积、质量单位或时间单位等。
- Antijamming Method for Pulse Per Second Signal in Synchronized Sampling Unit Based on GPS.Automation of Electric Power Systems,2000,24(1):45-47. GPS同步采样装置中防止干扰GPS脉冲信号的措施.;电力系统自动化;2000;24(1):45-47
- In addition, steam heating mode is used in the primary sampling equipment, but its temperature is not high enough to meet the need of stoving effect, so sampling filter core is easy to block. 同时一次取样设备采用蒸汽伴热，因温度达不到对其烘干作用的要求，容易造成取样滤芯堵塞。
- Also,the second sampling units and unit number and the shortcoming of jackknife were discussed. 另外，对二重样本单元和单元数的确定以及刀切法的局限性进行了讨论。
- The emphasis is on the principles and composition of C8051F020 processor module,as well as the design of the analog dada sampling unit,the import and exit unit,the man-computer interface unit and the communication unit. 重点介绍了装置的C8051F020处理器模块的原理及构成,以及模拟量采集、开入开出、人机接口、通信等模块的设计。
- Multistage sampling in forest inventory is not restricted to fixed-area sampling units. 森林资源清查中，多阶抽样并不局限于固定面积的抽样单元。
- While inserting, we use the last bit of each byte to compose the sampling sequence whose length is the number of primary samples subtracts 256. Then we use MD5 to compute the sampling sequence and get the index value, which is 256 bits. 该算法嵌入水印时抽取原音频采样的（S-256）个字节最后一位的数据，组成采样值序列。 使用MD5算法对上述采样值序列做运算，生成256位的索引值。
- The host computer and sampling units were separated electrically by adding photocoupler circuits to RS 485 bus interfaces. 由于在RS-485总线上加入了光电隔离电路，主计算机和各个数据采集单元电气上完全隔离。
- Mathematical Analysis of Sampling Unit and Holder 采样器和保持器的数学描述
- Improving of the Steam Sampling Unit 蒸汽取样装置的设计改进
- Applying Q cluster method,primary samples can be clustered by using the obverse figure of distant factor as class statistic amount,to form 28 samples vectors of fracture identification. 用Q型聚类分析对初始样品采用距离系数相对大小作为分类统计量进行聚类，形成识别裂缝的样本矢量28个。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- Design of an AC Sampling Unit with High Performance in RTU 高性能RTU交流采样单元的设计与实现
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- The Number of Basic Sampling Unit in the Sequential Sampling 序贯抽样决策中的抽样数量
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
