2) small pressure difference
小压差
1.
To apply this method in low-pressure gas fields and gas wells, dynamic simulation method was firstly adopted to analyze how to generate big temperature drop through small pressure difference.
为了在低压气田、气井上应用直接节流膨胀制冷工艺,首先采用动态模拟方法分析了小压差产生大温降的原理,采用节流阀小压差节流制冷、大面积换热预冷,换热与节流所形成的温差差距相互推动,最终能形成稳定的低温,从而获得大的温度降。
2.
This article has mainly introduced the cold mode test and the result analysts of the spring nozzle with small pressure difference.
主要介绍了小压差弹簧喷嘴的冷态试验和结果分析。
3) minimum error
最小误差
1.
Considering the characteristics of existing time series forecasting technique,a new integrated time series(ITS) forecasting method based on minimum error is proposed.
电力需求预测是当前电力企业营销部门面临的重要课题之一,结合现有时间序列预测技术的特点,提出了一种基于最小误差的综合时间序列预测方法,结合某电力企业的实际销售电量进行了分析和预测,证明了提出方法的正确性和可行性。
2.
An image block segment method based on the minimum error is put forward.
提出了基于最小误差分割原理的石块图像分割方法。
4) minimum variance
最小方差
1.
Controller performance assessment method of minimum variance based on adaptive filter;
基于自适应滤波器的最小方差性能评价方法
2.
Inverse design approach for minimum variance observers;
最小方差观测器逆设计实现方法
3.
It only needs routine closed-loop operating data and knowledge of the process time delay using minimum variance as a benchmark in controller performance assessment.
用最小方差准则来评价控制器的性能,仅需过程变量的常规闭环操作数据和过程的时间延迟特性。
5) wavelet variance
小波方差
1.
The wavelet variance under the single scale is discussed,and in combining the information entropy in information theory with physical sense,the wavelet entropy under the multi-scale is introduced in this paper.
讨论了单一尺度下的小波方差,并结合信息论中信息熵的定义和物理意义,进一步引进了多尺度下的小波熵;分别以频率突变和幅度突变两种仿真信号为对象,分析了小波方差与小波熵在反映随机信号统计特征方面的特点;最后,以一类钻井信号为例,分别利用两种方法分析和提取了信号在强噪声环境下的脉冲特征。
2.
According to the properties of bias drift of optic gyro, the wavelet transform is used to study the wavelet variance of random process.
根据光学陀螺信号零漂移的频率特性,提出了利用小波变换所具有的时频局部化的优点对其随机过程进行小波方差分析。
3.
A long memory analysis method based on wavelet variance for time series was proposed.
提出了基于小波方差的时间序列长记忆性分析方法,用该方法对汇率波动序列进行了分析,得到了长记忆参数的精确值。
6) small temperature difference
小温差
1.
The test of large flow quantity and small temperature difference of heat-supply pipe network and analysis of its results;
供热管网大流量小温差的测试及结果分析
2.
Research of Semiconductor Thermoelectric Generator in Low-grade Heat Energy and Small Temperature Difference;
低品位热源半导体小温差发电器性能研究
补充资料：小差
1.稍有误差;稍有差异。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条