查询词典 math

In this paper, based on the analysis of the structure, movement principle and math model of PMSM, fundamental theories of vector control, coordinates transform and algorithm of space vector PWM are introduced and PI control, speed and position calculation methods are discussed.

本论文在分析了PMSM的结构、运动原理及数学模型的基础上，系统地阐述了PMSM交流伺服系统矢量控制的基本原理、坐标变换方法及空间矢量脉冲宽度调制波的生成算法，论述了PI控制算法和速度位置计算方法。

Runs under DOS on a 286 with 287 math coprocessor and VGA display minimum.

DOS下运行的286与287数学协处理器和VGA显示最低。

Much faster if you have a math coprocessor. The

如果您的电脑有数学辅助处理器，用像sox这样的程式做音效转换或

I'll sit next to the boy who's best at math,"he thought,"and copy down his answers.

他想：只要到时候坐到数学最好的那人旁边，抄下他的答案就行了。

Thank you for copying your math notes for me.

谢谢你影印你的数学笔记给我。

According to the principle of "correspondence of teaching and learning" and "correspondence of teaching and math", the author had made a practical plan and comment on "the monotony of function" seven phases of conceptual formation teaching model was used during the teaching process.

目前中学对这个内容普遍采用照字面意义讲解定义的方法，以教师讲解为主，虽然也有启发引导，但总体上缺少学生的主动活动，特别是缺少学生自己的思维构造，本质上是缺少一个"建构"的过程。

She came a cropper in the math examination.

她的数学考试考砸了。

Reliable cryptograph is set up in math and formal computer science. According to the computational theory, the paper expounds mathematical background for public-key cryptosystem including: the complexity of algorithm and problem, relationship between the length of key and security of cryptogram.

可靠的密码学是建立在数学和形式化的计算机科学产生的结论之上的，本文从计算理论的角度阐述了构建对称密码体制所需的数学背景：算法复杂性与问题复杂性的关系；NP问题与密码学的关系；密钥长度与密码安全的关系。

Today we learned cubature of the cubic at math class.

今天我们在数学课上学习了求立方体容积的方法。

By the cubic equation fitting based on the data detected in measurement system as math model, the compensation program is compiled to carry out distortion correction in experiment program.

以检测装置测量拟合得到的三次补偿方程作为畸变校正的数学模型编写了测量校正程序，对光电测量系统进行了实验检测。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。