查询词典 screw pitch

And linking the principle of choosing computer visual inspection system hardware, the paper constructs hardware structure of visual inspection system, and develops measure software of thread geometry parameter and applies all above research results to quantificationally measure geometry parameters such as half angle of thread, coning and pitch of conical joint screw thread of graphite electrode, at last educes influencing expressions of the shelter of lead angle to half angle of thread change, it establishes theory base for error amendment.

论述了微小零件尺寸及形状误差的常用测量方法，提出了将视觉检测技术应用到微小零件尺寸及形状误差的测量中，构建了视觉检测系统的硬件结构，开发了相应的测量软件，应用第三章介绍的各种边缘检测方法对传动用滚子链链板进行了边缘检测对比实验，找出适合的边缘检测方法，并应用上述各章的研究结果对传动用滚子链链板节距以及圆形零件的圆度误差进行了测量。

However, when these tension screw s are loosened, the drumhead will become relaxed and its pitch gets lower.

相对的，当这些螺丝是松的时候音就变低了。

One day he was leaning on the railing of the engine-room, and was observing the engine, when a sudden pitch of the steamer threw the screw out of the water.

至于目前旅行中可能碰到的事，以及这些事对他可能产生的影响，他根本就没有放在心上。可是路路通却一直心神不定。

Also let us adjust the size or pitch of the screw propeller, then try to get high-speed running.

也让我们调整大小或摊位的螺旋桨，然后尝试获得高速运行。

Fig. 11 Measure screw thread pitch using screw gauge

图11。用螺纹规测量螺距的方法

The varying pitch helixes were constructed on the parameter equation, and were selected as sweep trajectory ; the surface of the screw was enveloped on the generating method.

设计过程中按推导出的数学方程构造各段螺旋线，并以该螺旋线作为扫描轨迹，遵循范成法原理包络出螺杆的各段螺旋曲面。

With a double-thread screw ,the nut motion is two pitches ,and, in general,the motion of the nut per screw rotation will be the lead(the pitch times the number of threads).

对于双头螺柱，螺母移动两倍的螺距，通常螺栓旋转一圈，螺母移动的距离为导程。

The three dimensional flow field in the triple-screw extruder with triangle configuration is the research objects of this task, including velocity field, pressure field and shear rate field etc., simulate the representative flow field in metering section of the triple-screw extruder, consisted of three-thread element with75mm pitch, has been simulated at the screw speed of 60, 120, 180, 240 and 300rpm and the flowing regulations in flow field and especially the role of the unique center zone affecting to the conveying and pressure generating ability have also been analyzed.

本课题以三角形排列的三螺杆挤出机三维流场为研究目标，研究内容包括速度场、压力场、剪切速率场等。模拟分析首先以螺距75mm的三头螺纹元件为代表，计算由其构成的三螺杆挤出机在60、120、180、240及300rpm转速下的流场，分析流动规律，并分析了特有的中心区在输送、建压方面的作用。

But some problems of designing including failure model of soils, the design of shape of screw piles, the computation of ultimate load for single screw pile or screw pile group, the reasonable ratio of diameter of lamina to pitch of screws or the distance of laminas were seldom researched.

但目前对于极限荷载条件下螺旋桩基础的地基破坏模式、桩型设计、单桩和群桩极限承载力的计算，以及合理的螺距与叶片直径比等问题的研究尚少，有待进一步完善。

A maneuvering mathematical model for Controllable-Pitch Propeller ships with three degrees of freedom is established according to separate modeling theory. Based on Netherlands Ship Model Basin\'s open-water tests, CPP thrust coefficients and torque coefficients in four-quadrant with different pitch ratio of screw and different types of CPP are obtained by using Akima interpolation. Therefore, CPP thrusts and torques are obtained.

基于船舶操纵性分离建模理论，采用荷兰船模试验水池B系列螺旋桨的敞水试验结果，利用Akima插值获得了不同类型的调距桨在不同螺距比下的四象限推力系数和扭矩系数，求得调距桨的推力和扭矩，建立了调距桨船舶的平面运动数学模型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。