1.
The Bayesian Estimation and Property of Two Populations with Partially Missing Data;
缺失数据下两个总体参数的Bayes估计及其性质
2.
The Effectiveness of Test for the Equality of the Probability Distribution of Two Populations with Nominal Scales
具有名义尺度的两个总体概率分布相等检验的功效
3.
Bayesian Estimation of Two Pareto Overall Parameter under the Foreword Restraint
序约束下两个Pareto总体参数的Bayes估计
4.
Estimation for two geometric populations with partially missing data;
具有部分缺失数据时两个几何总体的估计
5.
Estimation and test for two special exponential populations with partially missing data;
部分缺失数据两个特殊指数总体的估计和检验
6.
A Testing Hypothesis for two Normal Population Parameters in the Linear Relation;
两个正态总体参数的线性关系的假设检验
7.
Interval estimate of standard deviations proportion on two uniform distribution population
关于两个均匀分布总体标准差比的估计
8.
Bayes estimation of two general parameters with Burr distribution under order constraint
序约束下两个Burr分布总体参数的Bayes估计
9.
The Comparisons of Two Exponential Distributions Under Randomly Right Censoring
随机右截尾情形下两个指数分布总体的比较
10.
The total of two or more quantities; the aggregate.
合计，总额两个或两个以上数量的总和；合计
11.
Article 18 The plan for a city shall, as a rule, be worked out in two stages, i.e. comprehensive planning and detailed planning.
第十八条 编制城市规划一般分总体规划和详细规划两个阶段进行。
12.
1. Has politeness positive correlation with tact?
此研究有两个亟待解决的问题：(1)礼貌与得体总呈正相关吗?
13.
Parameter Estimation and Hypothesis Testing of Two Exponential Populations under Type Ⅰ Censoring Sample with Missed Data
定时截尾下具有部分缺失数据两个指数总体参数的估计与检验
14.
the arithmetic operation of summing; calculating the sum of two or more numbers.
求和的算术运算；计算两个或两个以上数的总和。
15.
Two heads are better than one. --Thomas Heywood
两个头脑，总胜于一个。——海伍德
16.
Three heads are better than two.
三个人的智慧总比两个人的强。
17.
Four eyes see more than two.
[谚]两个人总比一个人看得全面。
18.
used especially of drugs or muscles that work together so the total effect is greater than the sum of the two (or more).
特别是用来指药物或者肌肉，一起发挥作用，从而使整体效果大于两个（或多个）的总量。