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- The physical model of single channel pump was simplified,and the calculational mathematics model of internal flow in two dimensional single vane pump was set up. 文中从主要零件、配合间隙方面探讨了影响叶片泵工作可靠性的因素,提供了加油机叶片泵生产领域一些实用的工艺要素,作为选择依据。
- A two-dimensional unsteady temperature field calculation mathematical model has been set up by analyzing ingot solidification process and the program has been developed. 在分析锻造用钢锭凝固过程特点的基础上,建立起钢锭铸造凝固的二维非稳态温度场计算数学模型,并编制程序。
- He is reputedly brilliant at mathematics. 据说他在数学方面很有才能。
- It is a complexity of higher mathematics. 这是一道高等数学的难题。
- The elemental mathematics is very easy. 初等数学很简单。
- Mathematics arose from the need of men. 数学是由于人们的需要而产生的。
- I did the calculation by the rule of three. 我是根据比例运算法则计算出来的。
- I'll have to rub up my mathematics. 我得把数学复习一下。
- I'm afraid I'm quite hopeless at mathematics. 我担心我的数学怎么也学不好。
- You are out in your calculation. 你失算了。
- He is superior to his brother in mathematics. 他的数学比他兄弟好。
- He taught mathematics for many years. 他教数学已很多年了。
- She surpassed her brother in mathematics. 她在数学方面超过了她的兄弟。
- After much calculation, they offered him the job. 经过慎重考虑，他们把这项工作交给他了。
- He has a great faculty for mathematics. 他具有很强的学数学的才能。
- Mathematics is difficult for some students. 有些学生觉得数学困难。
- He was weak in mathematics, but good at English. 他数学差，但英语好。
- She was wrestling with assignments in mathematics. 她在苦苦对付数学作业。
- Mathematics is her favorite subject. 数学是她喜欢的科目。
- Did I make any error in my calculation? 我计算中有没有出差错?
