转数

建立火控弹道的数学模型，运用MATLAB软件对该数学模型进行计算分析，得出了弹丸射程与转数之间的关系，以及弹丸初速、射角变化对转数和射程关系的影响。

A fire-control ballistic mathematical model to study the relation between range and revolution of projectile was established and evaluated based on the software of MATLAB .

用地磁感应转数传感器实现引信定距方法的研究

The Research of Using Geomagnetic Revolution Sensor to Realize Fuse-ranging

这个开关控制着每分钟的转数。

This switch controls the number of rotations per minute .

转数指针快速上升。

The needle on the rev counter soared .

基于MATLAB软件的弹丸射程与转数关系

Study of the Relation Between Range and Revolution of Projectile Based on Matlab

高比转数混流泵叶轮水力设计CAD系统的研究

Hydraulic Design for Impeller of High Specific Speed Mixed-flow Pump and CAD System 's Research

低比转数双吸离心泵回流问题的CFD研究

Simulation of Reverse Flow in Low Specific Speed Double Suction Centrifugal Pump

设计了一副5叶片的低比转数离心泵叶轮，并应用二维粒子图像速度仪（PIV）成功地测试了转速1250r。

A five-blade centrifugal pump impeller was designed for experiment .

干燥方式是影响DBP吸油值的决定性因素，其次是温度、电解质、旋转床的转数、硅酸钠的浓度和反应终止时pH。

DBP oil absorbed value is determined by drying methods , then the influences of other factors are reaction temperature , electrolyte , rotational speed , concentration of sodium silicate and pI .

在同样的低比转数（ns≤20）条件下，比现有多级离心泵的水力效率可提高5%~8%。

The efficiency of Pitot tube pump is 5 % ~ 8 % higher than which of centrifugal pump under the same low specific speed ( ns ≤ 20 ) .

发动机曲轴转数表提供VTEC控制功能。

Engine crank tachometer provide VTEC control function .

尽管越来越多的信号处理模块转移到数字域实现，模数转数换（ADC）作为联系模拟世界与高效数字处理领域的纽带，是混合信号处理系统中不可或缺的组成模块。

Although more and more signal-processing functions are implemented in digital domain , ADC as the link between analog world and powerful digital systems is an indispensable module in mixed-signal processing systems .

首次基于CFD的方法研究了叶片数、叶片进口冲角和叶片包角对不同比转数离心泵必需空化余量的影响，并通过实验进行了验证。

The influence of blade number , incidence angle and wrap angle on cavitation performance of different specific centrifugal pumps are researched by CFD method , and the simulation results are verified by experiments .

上周三，纽约证交所（NYSE）和美国联合航空（UnitedAirlines）都因为神秘的计算机故障暂停运转数小时，《华尔街日报》（WSJ）网站也短暂出现无法打开的问题。

On Wednesday both the New York Stock Exchange and United Airlines suspended activity for several hours due to mysterious computing problems , while the Wall Street Journal 's website briefly went down .

既然扭转力和每米纱线所具有的转数（tpm）近似成正比，因此我们通过数出纱线每米的转数来说明平衡纱线和非平衡纱线的形成原理。

Since the torque is approximately proportional to the tpm ( turns per meter ), we may illustrate the formation of balanced and unbalanced yarns by counting the turns per meter .

应用标准k-ε湍流模型加壁面函数法对低比转数冲压多级离心泵叶轮内的三维湍流流动进行了时均N-S方程的数值计算。

The time-averaged Navier-Stokes equations of three-dimensional turbulence flow in impeller of stamping multistage centrifugal pump are calculated by CFD based on the standard k - ε turbulence model and wall function .

培养条件对共生菌发酵液抑菌和杀虫活性的影响研究结果表明，在NB培养液中，25℃、30℃时共生菌发酵滤液对大蜡螟的血腔毒力最强，转数对其影响甚微。

In order to promote active substance production , fermentation condition of symbiotic bacterium was optimized . Results were that the culture filtrates in NB showed the strongest insecticidal activity against G. mellonella at 25 C , 30 C.

采用自由发泡工艺研究聚乙烯低发泡成型的配方及工艺条件，讨论AC用量、EVA用量、DCP用量、螺杆转数对制品性能的影响。

Studies the formulation and process parameters of the low foam formation of PE by free foaming technique , discusses the influences of the specific contents of AC , EVA and DCP , and the screw speed on product performance .

总体的系统硬件电路包括：电源部分、单片机控制部分、电机开关驱动部分、连接触摸屏的RS232的接口电路部分、电机转数信号提取部分。（3）程序设计。

The overall system hardware circuit including : power supply parts and single-chip microcomputer control parts , motor switch drive part , connecting the touch screen RS232 interface circuit part , motor RPM signal extracted parts . ( 3 ) The program design .

在磨浆转数为20000r时，纤维长度和纤维粗度减小明显，细纤维化程度显著，此时的无石棉胶乳抄取板的抗张指数达到最大值。

The plant fibers were defibered effectively , the average length and the fiber-coarseness of plant fibers dropped evidently . Moreover , the tensile index of the non-asbestos sheet reached the maximum at 20000r .

该产品属于定轴式动力换挡类型，额定输入转数为1800～2400r/min，传动功率为40～50kW。

The product belongs to the category of counter shaft power-shift transmission . Its rated input speed is from 1800 r / min to 2400 r / min and drive power from 40 kW to 50 kW .

低比转数高效率蜗壳泵的开发

Development of High Efficiency Volute Pump of Very Low Specific Speed

基于磁通门技术的空炸引信计转数系统研究

Research on the proximity fuze turns-counting system based on fluxgate Technology

特小比转数的后向离心通风机的研究与开发

Research and Development of Backward Centrifugal Fan with Low Specific Speed

不锈钢转数设备可用来加工批量大的料。

The stainless drum may be used to make larger batches .

让一台引擎每分钟的转数比19000转还多是没有意义的。

Making an engine run faster than 19000 rpm is pointless .

低比转数冲压焊接离心泵粘性设计方法及其应用

Viscous Design Methods of Stamping and Welding Centrifugal Pumps and Their Applications

每分钟的转数（尤指发动机的）

Revolutions per minute ( esp as a measure of engine speed )

引信计转数传感器检测方法研究

A study on the method of testing fuze turns-counting sensor

基于磁阻式传感器的引信转数测量方法

Measuring method of fuze rotational numbers based on magnetoresistive sensors