速度计

The paper introduces an algorithm to natural logarithm based on Maclaurin series.

基于麦克劳林级数公式计算自然对数，构造计算式向1逼近，从而加快级数的收敛速度。

Secondly, all kinds of incremental transmission losses algorithms are derived completely. And the merit and demerit of these algorithms are compared in detail through the analysis of the calculate example.

传统的经典静态优化方法，由于没有考虑各时段之间的动态约束，因而难以计及负荷的未来变化对当前优化调度的要求，在面对动态变化的负荷时，优化过程带有明显的局限性，但其算法简单、计算速度快的优点仍对动态优化调度具有很强的吸引力。

During robot motion, the information from feature observations is fused with that from the odometry by particle filter, which improves the speed and accuracy of the localization effectively.

在机器人移动过程中，环境特征点的观测信息和里程计信息通过粒子滤波相融合，从而提高了机器人定位的速度和精度。

The step motor can receive digital signal directly and has the ability to response outer environment immediately and has no accumulation error, which often is used in driving system. In this driving system, open-loop control system is composed of stepping motor, which can satisfy the demand not only for control precision but also for the target of economic and practicality. On this basis , the analysis of stepping motor in power calculating and style selecting is also given.

由于步进电机能够直接接收数字量，响应速度快而且工作可靠并无累积误差，常用作数字控制系统驱动机构的动力元件，因此，在驱动装置中采用由步进电机构成的开环控制方式，这种方式既能满足控制精度的要求，又能达到经济性、实用化目的，在此基础上，对步进电机的功率计一算及选型问题经行了分析。

According to the characteristics of distribution networks,a backward topology method is adopted considering the status of the switches and the equivalent loss proportion by which the rank of calculating matrix can be reduced,and therefore it can increase the overall calculating speed.

根据配电网的结构特点，采用了计及网络开关状态的逆序拓扑方法和等效损耗分摊，以降低计算矩阵的阶数，提高整体计算速度。

It is true that, when millions of men are suddenly released, it may require time for private industry to reabsorb them—though what has been chiefly remarkable in the past has been the speed, rather than the slowness, with which this was accomplished.

确实，当数以百万计的人突然间被遣散，要使得私营工商业重新吸纳他们是需要相当一段时间的——但是历史上最主要最显著的现象告诉我们，吸纳的速度其实很快，而不是很慢。

We are an enterprises, taste yield development, production and sale with doing sclerometer, flaw detector to wait, be opposite with engine and industry website are being searched greatly each after the line on new network address of the company promote reflective speed to make next contrast, the phone sale that content accepts with me is exemple.

我们是一家企业，以做硬度计、探伤仪等品产的开发、生产和销售，以新网址上线后各大搜索引擎及行业网站对公司的推销反映速度做下对比，内容以我接的电话销售为例。

For generalization, we present the measurements under symmetrically and unsymmetrically air-supplying conditions, respectively.

为验证结果的合理性与正确性，用风速计直接测量了对称条件下的速度场，用CFD软件对对称和非对称情况分别进行了流场模拟。

A tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle.

能够根据它自己的知识产生绘画纪录的转速计；能够纪录机动车辆旅程的时间和速度。

Base on inductive circle loop, use to counting frequency mode detect vehicle's velocity, length, runoff, arrival and departure, and transmit the corresponding figures to the upper computer in tollgate control center through RS-232 serial port of the toll computer, or provide control signal for other toll advice.

基于感应式环形线圈，采用计频方式检测车辆的速度、长度、流量、到达与离开，并将有关资料通过RS232串口送至收费站监控室的监控主机。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。