数学

The report also cause calls for strang feeling strengthening the math preparation of elementary and middle school teachers. And it urgers publishers to shorten math text books which are often up to a thousand pages long.

报告还呼吁中学老师的知识量以及数学基础知识的扎实，还要求出版商减少通常都达到1000多页的数学书的页数。

The reports also calls for strengthening the math preparation of allementry and middle school teahers and it urgers publishers to shoren math text books which are often up to a thousand pages long.

报告还呼吁加强数学方面初、中级学校老师的储备。而且小组还要求出版商精简总是厚达一千页的数学教科书。

The real shape of U tube was considered, and heat transfer model of underground vertical buried tube heat exchanger was built with math methods and numerical analysis software. The soil temperature distributions around the buried tube under different working conditions were solved by programming.

考虑U型管的实际形状，借助数学方法和数值分析软件，建立了地下垂直埋管换热器传热模型，并通过编程求解数学模型，得到了系统短期运行不同工况下埋管周围土壤的温度场分布情况。

Synthetical evaluation index system of tractive performance and economic performance of automobile is presented on the base of summarizing former studies.

在建立发动机及整车动力性、经济性数学模型的基础上，提出了传动系参数综合优化模型；并建立了相关参数对汽车动力性与燃料经济性的弹性系数数学模型。

Based on the theory of construction machinery, this paper establishes the mathematical model to forecast wheel loader tractive performance. By using relative software, it compares and analyzes calculated result and test result so as to validate the right and the science.

本文主要以工程机械理论为基础，建立轮式装载机牵引性能预测的数学模型，利用相关的性能预测软件，把软件计算的结果和试验结果加以对比、分析，从而验证数学模型的正确性和科学性。

The testees'previous mathematics knowledge and the problem's difficulty level have a major effect on sense of self-efficacy in mathematics learning, which ought to be taken into account in the testing .

被试的数学基础和测题的难度对数学学习自我效能感的影响很大，这两个因素也是在自我效能测量中必须要考虑的因素

On the basis of the mathematical models got by different measuring methods, a complete universal mathematical model was put forward by which different tappets lifts can be converted from one to another.

针对凸轮升程测量量具及方法不统一而造成升程转换困难及转换误差较大等问题，在研究凸轮升程各种测量方法数学模型的基础上，提出一个不同形式推杆升程相互转换的通用数学模型。

The problem with trying to argue that the male tendency to systemise suggested by Dr Baron-Cohen might lead to greater mathematical ability is that, in fact, girls and boys are equally good at maths prior to puberty.

Baron-Cohen博士所提出的男性由于更具系统性而在数学能力上占优的观点有一个问题，即事实上在青春期前女孩和男孩在数学方面是一样出色的。

In the paper, the simulation model of port plate/cylinder block frictional pair in which the lubricating film forms was established according to force balance equation and flow continuity equation with SIMULINK of MATLAB. The frictional pair includes of damp groove type continuous oil supply port plate /cylinder block frictional pair and semi-perimeter double oil groove type periodical oil supply port plate /cylinder block frictional pair.

本文根据配流副数学模型中的力平衡动态方程和流量连续方程，利用数学仿真软件MATLAB中的SIMULINK工具包分别对阻尼槽型连续供油配流副和半周槽双油腔间歇供油配流副建立了润滑膜形成的仿真模型，并对不同工况下的这两种配流副润滑膜的形成及变化规律进行动态仿真研究。

The results indicated that most students were dependent on the problem's surface structure for their sortings. Futhermore, an interaction effect was found between the student's grade and their achievement. As the grade level increase, instesad of using surface structure, high achievement students tended to sort problems according to their semantic structure. On the contrary, low achievement students became relied more and more on the surface structure of the problems while sorting.

另外，学童之年级及其数学成就对他们采用何种策略解题有交互影响；随年级的提升，高数学成就组学童倾向放弃弃表面特徵，而改较高层次的语意结构作为分类的基础；反之，五年级低成就组学童则变得更依赖问题的表面特徵作为分类的依据。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。