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- generalized raking ratio estimators 广义搜索比率估计量
- raking ratio estimators 搜索比率估计量
- In this paper, the bias of the ratio estimator and the estimateof mean square errors of this estimator with known numerator have been compared and discussed. 给出了分子已知情况下比率估计量的偏差和均方误差以及均方误差的估计，并对两类比率估计量进行了比较.
- He is raking through old records for information. 他在过去的记录中找寻资料。
- Nonreponse is a common seen problem in sample surveys. This paper deal with a ratio estimator by use of double sampling when there exsits nonresponse. 无回答是在抽样调查中常遇到的问题,本文给出了如何用双重抽样来处理存在无回答时的比率估计量。
- My simple excel file can already manipulate the existing data to do HSF/HHF arbitrage, golden ratio estimation and much much more ‘functions’ if I want to. 幸而通道底部支持亦在上移中，限制了指数的再跌空间，令大市有机会于未来一、两个月内呈现反覆上升的走势。
- Secondly, this thesis compares the hedging effectiveness of two hedge ratio estimating methods, the Ordinary Least Square (OLS) and Error Correction Model (ECM). 第二，论文在理论上比较了最小二乘法（OLS）与误差修正模型（ECM）两种套期保值率估计方法下的套期保值效果。
- He must be raking in $500 a week. 他一定是一星期赚五百美元。
- He must be raking in￡500 a week! 他肯定一个星期挣五百镑！
- I'll try and rake out something for you to wear. 我尽量找些东西给你穿。
- The rake of the theater floor is a bit too steep. 剧场的地板斜度太大了一点。
- Please don't rake up that old quarrel. 请别再提起那次的争吵。
- Don't always rake up the old stories. 别总是旧事重提了。
- This paper discusses three methods for the signal-to-noise ratio estimation of seismic records,and they are SVD method,statistical averaging method and frequency-domain estimation method,respectively. 估算地震记录信噪比的三种方法有SVD法、统计平均分析法和频率域估算法。
- Implementation of the scheme has resolved the problems on difficult hydrogen nitrogen ratio estimation and difficult control, it has apparent economic and social benefit and worth extend. 该方案实施后,解决了操作人员在实际操作过程中对氢氮比判断难、控制难的问题,具有明显的经济、社会效益及推广价值。
- I couldn't rake together enough money for a new bike. 我凑不够买一辆新自行车的钱。
- He was as thin as a rake in spite of his enormous appetite. 虽然他食欲很大，却长得骨瘦如柴。
- Father told Tom to rake the yard, but Tom tried to beg off. 父亲要求汤姆清扫庭院，但他却要求放了他。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
