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- The gramineae weed in wheat fields in Xingtai was investigated by the method of random sampling and inverted W-sampling pattern. 摘要采用随机取点和倒置"W"取样相结合的方法，对河北省邢台市麦田禾本科杂草进行了调查。
- With the method of random sampling of enterprises' qualification levels, this paper studies the development of management models of construction enterprises. 采用以企业资质等级分层随机抽样的方法,调查了建筑施工企业经营模式发展的现状。
- method of random sampling 随机抽样法
- Sampling rule of random variables in iterative calculation method of implicit stability coefficient obeys sampling rules of response surface method.An idea of classi... 可靠度分析方法中极限状态方程的建立是以稳定系数计算为基础的。
- Methods With a method of stratified random sampling, a questionnaire survey was conducted among 786 students from 8 middle schools in Beijing. 方法采用分层整群抽样方法，对北京市城区8所中学共计786名学生进行问卷调查。
- So, the paper presents the method of random asymptote distribution to solve it. 为此,文中提出了有效的随机数渐近线分布法对其进行评估。
- In this study,the leaf demography was implemented with the method of randomized branch sampling. 本研究中，我们采用随机枝取样法，研究了东灵山地区辽东栎的叶群体的数量动态。
- Using the absolute calibration method of random signal sensor, some perfect accelerometer frequency response curves are abtained. 使用随机信号传感器绝对校准方法，得到了较为理想的加速度计频响曲线。
- Based on the idea of the discrete analysis method of random vibration, the paper studied the wind responses of guyed masts. 摘要基于随机振动状态向量离散分析方法，研究了桅杆结构的风振响应。
- The basic principle and method of random probability design,and analysis method and calculation formula are also presented. 着重介绍了随机可靠性设计的基本原理、方法及随机可靠性分析方法和计算公式。
- A method of movement identification about random type of revolute four-bar mechanism and method of realization of random point coupler curve by mouse-event was introduced. 介绍了任意铰链四杆机构运动识别及利用鼠标事件实现其任意点连杆曲线的方法。
- Based on the theory of random set and whole geometry, this paper discussed the principle and method of calculating regional circumference for digital image. 从数学中的随机集和整体几何理论出发,讨论了数字图像区域周长计算的原理和方法。
- The produce method of random data submitting to logarithm normal distribution and cut normal distribution is given, and pilot random model is simulated. 推导出了服从对数正态分布与截尾正态分布随机数的产生方法，并对随机驾驶员模型进行仿真。
- Summer fallow is the best method of destroying weeds. 夏季休耕是消灭杂草的最好办法。
- This is not an economical method of heating. 这不是一种经济的取暖方式。
- The paper introduces the methods of random choosing questions in the multimedia courseware. 介绍了多媒体课件中随机出题的方法。
- His method of organizing the work is commendable. 他组织这项工作的办法是值得称赞的。
- You'll find little system in his method of work. 他的工作方法无甚条理。
- Taking Mean Square Error (MSE) as principle, the wave-average filtering and the median filtering methods of random RFI suppression are raised. 以MSE为准则,提出了波形平均算法和中值滤波算法，并对实测的超宽带表层穿透雷达数据进行了处理；
- It's not an economical method of heating. 这不是一种经济的取暖方式。
