查询词典 math

She wants to prove that girls can be successful at math and science without being nerdy.

她想证明，女孩照样可以在数学和科学等领域拥有傲人成绩，同时也不会变成书呆子。

The math model of the movement,flux and control system of position pump was established by analyzing its working principle,and its hydraulic system simulation model was established based on AMESim.The pressure and flux pulsation of the position pump was analyzed,and the pressure and flux was calculated by simulation when there are sign of wear for the position pump and system flux change.

分析了恒压力轴向柱塞泵的工作原理，推导并建立了液压泵压力流量和压力调节机构的数学模型，并在此基础上以AMESim工程软件为平台建立了轴向柱塞泵的仿真模型，分析了压力流量脉动状况并对液压泵在内部磨损和系统流量变化两种情况下的压力流量进行了仿真计算，对两种情况下泵的工作情况进行分析比较，为液压脉动抑制和故障分析提供了参考。

Engineering College, Air Force Engineering University, Xi'an Shaanxi 710038, ChinaAbstract: The math model of the movement, flux and control system of position pump was established by analyzing its working principle, and its hydraulic system simulation model was established based on AMESim. The pressure and flux pulsation of the position pump was analyzed, and the pressure and flux was calculated by simulation when there are sign of wear for the position pump and system flux change.

分析了恒压力轴向柱塞泵的工作原理，推导并建立了液压泵压力流量和压力调节机构的数学模型，并在此基础上以AMESim工程软件为平台建立了轴向柱塞泵的仿真模型，分析了压力流量脉动状况并对液压泵在内部磨损和系统流量变化两种情况下的压力流量进行了仿真计算，对两种情况下泵的工作情况进行分析比较，为液压脉动抑制和故障分析提供了参考。

The theory of the reaction wheel is introduced at first,then the invariability theory of disturbing compensation and the math description of feed forward control.are recommenoled feed forward control and dead voltage compensation are added in the model of reaction wheel control.

中文摘要：对星载二维转台中反作用轮的控制技术进行了研究。介绍了反作用轮的作用原理，给出了扰动补偿的不变性原理和前馈控制的数学描述。

If students are well-organized and have strong math skills, they can join the ticket selling team.

如果学生有良好的组织性，很强的算数能力，那么他可以加入售票队伍。

The study of nearly 5,400 children aged 6 to 16 years found that those who were deficient in iron were more than twice as likely to score below average on standardized math tests than their more well-nourished peers.

对近5，400名年龄在6-16岁的孩子研究发现，在标准化数学考试中，缺铁的孩子与营养充足的孩子相比，他们低于平均分的成绩是后者的两倍多。

The purpose of this study is to design remedial instruction activity for "Equivalent Fraction Unit of the Elementary School Math Subject".

本研究旨在针对「国小学科等值分单元」设计线上补救教学活动。

After 3800 Death of the World's top math problems -- Ruler as "arbitrary angle trisection, turning round to square, fold the cube, as is 7-gon, as is 9-gon, as are 10 side of the form, as are 13-gon," The world, where people called mathematicians have challenged the "seven problems" Archimedes Newton Gauss, etc., Are hard to understand in the end.

历经3800年世界顶级数学死题——尺规作&任意角三等分、化圆为方、倍立方体、作正七边形、作正九边形、作正十一边形、作正十三边形&，全球，凡称得上数学家的人都曾挑战过这&七大难题&，阿基米德、牛顿、高斯等等，均以不得其解而告终。

For instance, he asked how I study the character of heat tube, and how I set up the math model about the heat tube.

是个法国人面试我，刚开始，他介绍他们公司的概况和工作的要求。

According to tire valve assembling craftwork, give the math model based on Petri Net and stimulate it, and get the best scheme. All these work afford a precondition and macroscopical guidance for study and making out a good function tire valve assembling equipment.3Have a deep research on the whole structure of the assembly equipment. Great innovation is presented in the design process of 9 suits of transmission machine and 5 sets assembly tongs, so that the structure is compact and the tongs have good fuctions. Especially, the design of tongs for extrusion is perfect as the author think.4 Hardware about control is selected carefully and software is programmed seriously.

故此，按照现有的气门芯装配工艺，运用Petri网对气门芯装配进行了数学建模，并对之进行了装配仿真，得出理想状态下的最优方案，为研制高效的气门芯装配系统提供了必要的前提条件和宏观指导； 3对装配系统的整体结构作了深入研究与规划；对9套送料机构和5套装配夹具进行了大胆的创新设计，使得整套系统结构紧凑，装配夹具性能优良，尤其是镦顶夹具的设计，为作者得意之作； 4控制系统硬件进行了精心选型，软件进行了认真编写。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。