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- environmental stratification sampling technique 环境梯度分层采样技术
- stratification sampling 分层取样
- post stratification sampling 事后分层随机抽样
- I spent a few days sampling the literature of social science. 我花了几天时间浏览有关社会科学的文献。
- Social Stratification and Social st. 当代中国的社会分层与社会稳定;
- Stratification of rocks into beds. 层理岩石层理形成地层
- It involves a subject known as isokinetic sampling. 这涉及所谓等速取样的问题。
- Stratification in polar waters normally is weak and transient. 极地水域的成层性是微弱而暂时的。
- The concept of sampling will be presented below. 关于采样的概念，后面将要说明。
- There are many applications for random sampling. 随机抽样有许多应用场合。
- The difficulty here is stratification of the two air streams. 这里存在的麻烦是两种空气气流的分层问题。
- Sampling techniques and practices II. 抽样技术及其应用2。
- The stratification of beach deposits has been studied particularly. 对海滩沉积物的层理进行了着重研究。
- Soil sampling error in agricultural environment. 农业环境中土壤取样误差研究。
- A deposit, as of ore, parallel to local stratification. 沉积物平行于局部地层的沉积物，如矿层
- The Sampling Handling Ultrasonic R. 机器人超声测距数据采集处理。
- Instrumentation is not a substitute for sampling. 检测不能替代取样。
- Are closed sampling devices on board? 船上装有闭式取样装置吗?
- This process is called nearest-point sampling. 这个过程被称为最近点取样。
- Stratification in polar water normally is weak and transient. 极地水域的成层性是微弱而暂时的。
