查询词典 circular

Central cracked circular disk; split Hopkinson pressure bar; dynamic fracture ; dynamic stress intensity factor

中心裂纹圆盘；分离式霍普金森压杆；动态断裂；动态应力强度因子

"Thin-strip saws are used in various ways in both hand and machine operations; circular , or disk, saws are always machine powered."

薄带锯用于各种手工或机器操作中，而圆锯则常用于动力机器操作中。

The circular disk is somewhat easier to machine and to load than the tensile 3 specimen; moreover, if required, several calibration points can be obtained from a single load.

基於试片加工与负载的方便性，而且可以只从单一负载就可取得多点资料，所以圆盘试片受上下压力实验法是比较被推荐使用的方法。

The circular disk of the Earth was crossed from west to east and divided into two equal parts by the Sea (their name for the 3)Mediterranean, and its continuation, the Euxine, the only seas with which they were acquainted.

类似一个圆饼的地球从西向东延伸，被"大海"及其延伸部分欧克辛斯海（这些都是希腊人唯一熟悉的海域）分成相等两部分。

Okubo,the stress distribution in a circular disk maked of fiber-reinforced photoelastic composite under diametrical compression is investigated.

本文根据Okubo的各向异性分析，对纤维增强光弹性复合材料制成的对径受压圆盘进行了研究，在此基础上提出了采用一个对径受压圆盘测定光弹性复合材料三个条纹值f_L、f_T、f_

"Thin-strip saws are used in various ways in both hand and machine operations; circular, or disk, saws are al ways machine powered."

薄带锯用于各种手工或机器操作中，而圆锯则常用于动力机器操作中。

Rotating disks are the basic mechanical element of steam and gas turbines, grinding wheels, circular saws, and computer disk memories.

旋转圆盘是工业中应用广泛的一种基本机械元件，它广泛的应用于旋转机械，诸如涡轮机、圆锯、计算机硬盘等，上述系统中这些盘类结构严重的横向振动将使机器工作时的精度降低﹑动态性能下降以及造成被加工材料的浪费，严重时甚至使圆盘元件损坏。

Something resembling a flat, circular plate; a disk.

圆盘呈扁圆盘状的东西；圆盘

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

This project is intended to modify circular disk loaded in diametral compression method, from concentric load to distributed load on a small area to reduce error. Firstly, we will establish digital Photoelasticity system, manufacture specimen, design loading frame, and then the experiment will completed.

本计画主要目的在减少误差而修正圆盘试片受上下压力实验法的数学理论依据，负载从集中力改为有限范围的均布力，经过理论推导后，以自行组合之数位光弹仪实验比较两者求出的材料条纹系数值。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。