quantity n. 1.量 (opp. quality); 分量,数量;额;【物理学】值,参量。 2.〔pl.〕大量,大宗,大批,许多。 3.定量,定额。 4.【数学】量;表示量的数字[符号];【逻辑学】(名词、特别是命题主语的)量。 5.【音韵学】音节的长短;表示音节长短的符号;【语音】(元[母]、音节等的)音量。 6.【法律】期限。 a known quantity 已知数。 an unknown quantity 未知数;〔比喻〕难预测的人[物]。 a negligible quantity 可忽略的量;〔比喻〕无足轻重的人〔物〕;可忽略的因素。 a quantity of 一些。 in quantities 大量。 in quantity 很多。
sample n. 1.样品,货样。 2.标本;榜样,实例。 3.【统计】典型取样,抽检查。 4.【电讯】信号瞬时值。 5.【冶金】 〔 pl. 〕 锌华。 That is a fair sample of his manners. 那就是他的典型态度。 a light sample 光脉冲。 up to sample 1. 和样品一样[相符]。 2. 可以接受的,可以同意的。 vt. 从…取样,从…抽样;提供;货样;对…进行抽样检查。
The present methods for testing the large - scale corpus segmentation have the following faults : a . it is difficult to exactly estimating the variance of population ; b . the sampling quantity is too large to test the corpus segmentation . to solve the given problems , we put forward the testing method based on clustering , which sorts the sample of corpus into many group by clustering them 语料库分词质量的评价问题是汉语语料库的特有问题,已有的简单随机抽样的方法,当语料库规模变大时,无法精确估计分词质量评价中语料库样本的总体方差,同时,为了保证检验的精度,传统抽样方法的检验费用太高。
When functionality testing is being performed following the completion of the trial operation of wastewater , sewage or sludge treatment facilities , the engineer shall conduct an on - site check to determine whether the enterprise ? s wastewater , sewage and sludge output volume ; operating system ; operational status of wastewater , sewage and sludge treatment ; sampling locations ; sample quantity ; and sampling frequency comply with regulations and whether relevant records are reliable 五废(污)水处理及污泥设施完成试车,进行功能测试时,前往现场查核事业之废(污)水与污泥产生量、作业系统、废(污)水与污泥处理操作状态、取样位置、数量、频率是否符合规定及相关纪录是否确实。
The following merits can gain by using the clustering method : a . the sampling quantity can be reduced by using the method to test the segmentation of the large - scale corpus ; b . the testing precision can be improved and the variance of population can be estimated more exactly 与已有的简单随机抽样方法相比,本文提出的方法在大规模语料库分词质量评价时,有如下优点; a通过聚类得到语料库抽样样本分词正确率的分层知识,进而在检验中运用分层抽样带来的增益减少检验的费用: b