查询词典 maximum speed

Train operation speed can reach a maximum of 80 kilometres per hour, the average operating speed of not less than 35 kilometres per hour.

列车的最高运行速度可以达到每小时80公里，平均运行速度不低于每小时35公里。

In this article, the wave of cutting speed is described as the deviation of mean square and the maximum deviation of speed during the working stroke.

本文用工作行程中速度的平均平方偏差及最大速度差来描述刀具速度波动，并以此为评价函数，采用多目标优化设计方法，确定牛头刨的主传动拉杆尺寸。

In order to achieve the stochastic inversion scheme, the stochastic approximation expectation maximum algorithm is introduced, the inversion at each iteration, the automatic modification of the statistical parameters to speed up the computing speed, improves accuracy and stability of the inversion.

为了实现所提出的随机反演理论，引入了随机近似最大期望算法，在反演的每次迭代后，自动修改各统计参数，加快了计算速度，提高了反演精度和稳定性。

Based on the above study, a program is developed which calculate the modeled subgrid stresses, and is applied to simulate the turbulent flow in a plane channel. The computational result is compared with the data extracted form a DNS database, and the agreement is satisfactory. A numbers of physical phenomenon has been reproduced in the simulation, including hairpin vortex and counter-rotating rolls in near wall region, intermittent vortex structure, the maximum of pressure clustering in wall area and the high-speed fluid sweep into the low speed fluid, and the ability of the LES to simulate turbulent flow is well shown.

在对LES技术学习掌握的基础上，编制了亚网格模型的计算程序，在三维平板通道流动的具体计算中应用大涡模拟技术，并与DNS计算结果进行了比较，得到了满意的结果，三维通道中的重要流动现象被很好的预示出来，包括近壁面的发卡涡，对旋涡，间歇猝发涡结构，压力最大值向壁面的倾斜，高速流体对近壁面流体的下扫，卷掠等，显示了大涡模拟技术对湍流流动模拟的能力。

As the complete characteristic curves of reversible pump turbine are often used to calculate the instantaneous parameters, this paper studies the characteristic curve and the wicket closure and opening law in pumped storage plants.Chapter 1 presents the importance and the necessity of this study and reviews the previous related research on hydraulic transient process and valve regulation in pumped storage plants.Chapter 2 analyzes the six collected characteristic curves of reversible pumped turbine and studies their diversification from the point of view of specific speed. The six collected discharge and moment curves with maximum efficiency have been fitted to piecewise continuous curves. This curve-fitting procedure is listed.Chapter 3 takes Liyang Pumped storage plant as an example and analyzes the effect of different characteristic curves on regulation guarantee parameters and the variety of its trochoid during the same operation status.Chapter 4 takes three pumped storage plants with different heads as examples and studies the characteristic of coordinated closure with wicket gate and ball valve and its effect on dynamic pressure in the spiral case, inlet pressure in the draft tube and the rise of rotating speed.Chapter 5 summarizes this paper and point out what should be done in the future research.

由于在过渡过程分析计算中，需要频繁利用可逆式机组的全特性曲线推求机组的瞬时参数，所以本文就特性曲线及关闭规律问题进行了研究，其主要内容如下：第1章，指出本文研究的意义和目的，回顾前人对水力过渡过程、抽水蓄能电站及阀调节的研究成果，在此基础上提出本文的研究内容；第2章，针对收集到的六套特性曲线，从比转速的角度出发来研究可逆式机组特性曲线的变化规律；并对六套曲线的最高效率流量和力矩曲线进行分段拟合，得到各分段函数的具体形式，再通过举例说明最高效率曲线的拟合步骤；第3章，以溧阳抽水蓄能电站为实例，分析讨论不同比转速特性曲线对调保参数造成的影响及对于相同工况其轨迹线的变化；第4章，结合高、中、低三水头段抽水蓄能电站，在导叶直线关闭的基础上，研究导叶与球阀协联关闭规律的特点及对蜗壳动水压力、尾水管进口压力及转速上升造成的影响；第5章，总结全文，提出今后研究的重点和方向。

The electrical design of USB limits the maximum cable length to 5 metres for full-speed devices and up to 3 metres for low-speed devices.

电气设计的USB的最高限额电缆长度为5米的全速设备和高达3米的低速设备。

When the bottom plate side syndiospecific lower than a sizzling, drawing pressure ball left, paper will go on there which would in turn low-speed machines brace will receive the same fault because plate following fulcrun is the eccentric shaft, corrected, you can add the eccentric shaft, convex to reverse some of the panels to fan-shaped with a sizzling plane are equal to the maximum State, low-speed machines la along two concave iron support, you can set the concave iron spare, Planer to some, is equal to the thickness to brace the distance below the iron plate plane, the installation at a later time.

当侧规底部扇形不活矮于铁不活立体时，不推纸压球压下去此后，纸弛不离会出不隐凹下下去不隐象，矮速机的不推条也会出不隐同样的障碍，因为扇形不活底下的支点是公道小轴，在校侧时，可以不兵公道小轴的凸背回旋一些，调度到扇形不活背同铁不活立体不等为最好状况，矮速机的不推条是由二块凹形铁撑持，可以不兵凹形铁拆上去，用刨床刨去一些，刨去的厚度即是不推条矮于铁不活立体的间隔，安设此后再举不静调度。

However, to protect RapidShare servers and network bandwidth from congestion caused by automated downloading, the maximum download speed for free‐users has been limited to 500 kilobit per second, or around just 62.6 KB/s, instead of full download speed previously.

不过，为了保护rapidshare服务器和网络带宽，从而造成的阻塞自动下载，最高下载速度为免费用户已不限于500 kilobit每秒，或约62.6刚才是KB / s ，而不是全面的下载速度以前。

The determination of speed ratio gear box, it is necessary to take into account the different speed pump to meet the test requirements, but also consider the maximum torque of the engine near the work.

齿轮箱速比的确定，既要考虑满足不同转速泵的试验要求，又要考虑让发动机在最大扭矩点附近工作。

Results show the wind shifted from easterly at 8am to south-southwesterly and the wind speed reached maximum values at 1pm. From then on, the wind speed decreased and shifted to easterly wind.

结果发现高雄市区夏季之海陆风约从8时起，风向由偏东风迅速转变为南南西风，至13时达极大，再逐渐递减。

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。