查询词典 diameter

Based on the above theories, some vibration characteristics of longitudinal acoustic horns are analyzed with finite element analysis software ANSYS. Some factors influence to large end amplitude distribution is studied such as big end diameter, length of horn, and diameter ratio of big end to small one. In addition, we carry on analysis and research to resonance frequency of large cross-section acoustic horn, amplitude magnification factor, wave node position of horn, transverse vibration situation and so on, and some related change rules are obtained.

在此基础上，通过有限元分析软件ANSYS对纵向超声变幅杆进行了振动特性分析，研究了变幅杆的大端直径、变幅杆长度、大小端面直径比对大端面振幅分布的影响，并对大截面变幅杆的谐振频率、振幅放大系数、变幅杆的波节点位置，横向振动分布等进行了分析研究，总结了相关的变化规律。

Therefore, the face-width of the face gear is limited. According to the conditions of undercutting and pointing, the formulae of minimum inner diameter and maximum outer diameter are derived for the shaft angle face gear .

根据产生根切与齿顶变尖的条件，给出了任意轴交角下齿宽设计的公式，定义了两个无量纲参数，即最小内半径系数和最大外半径系数，来表示齿宽的设计范围。

The plasma arc generator comprises cathode, two anodes and insulating strip between two anodes, first anode is cylindrical hollow sleeve, the cylinder cathode is placed in the centre of said sleeve, and an annular fluid channel is formed between both the lower portion of first anode is equipped with a hole as fluid outlet, and second anode is a circular plate with central hole, between two anodes there is an insulating strip, the diameter of central hole of second anode is less than the diameter of lower hole of first anode.

本发明是一种串式多级压缩等离子弧发生器，由阴极、两阳极及阳极之间的绝缘片组成，第一阳极为圆柱形空心套管，圆柱体阴极处于该套管中心，并在两者之间形成环状流体通道，第一阳极下部是一个供流体出口的横截面为圆的孔，第二阳极是中心开孔的圆形板，两阳极之间有绝缘片，第二阳极中心孔的直径小于第一阳极下部孔的直径。

For cable with armor or copper belt sheath structure,should be not less than 1 2 times of cable overall diameter;for soft cable with sheath layer structure,should be not less than 6times of cable overall diameter.

有铠装或铜带屏蔽结构的电缆，应不小于电缆外径的12倍；有屏蔽层结构的软电缆，应不小于电缆外径的6倍。

Based on the analysis of one type high-speed gas bearing working principle, the bearing diameter of axle static carrying force model was set up, and the relationship between bearing clearance gas flow rate, intensity of pressure and orifice radius were analyzed, along with the diameter of axle movement tracking under the centrifugal force in the low rotating speed was found.

在分析一类高速气浮轴承工作原理的基础上，建立其轴径轴承的静态承载力模型，并据此分析出轴承间隙中气体流量、压强与节流孔孔径间的相互关系，以及在低速运转下受离心力作用的轴径中心运动轨迹。

The influences of solution concentration, potential, organic salt content (benzyl triethylammonium chloride), solution feeding rate, and diameter of capillary on the diameter of the fibers and its distribution were studied.

采用正交设计实验的方法，对溶液浓度、电压、有机盐含量、溶液供给速率、喷丝孔孔径5种因素与纤维直径和直径的多分数性之间的关系进行了研究。

The results show that the microscopical pore structure of the three dimensional orthogonal woven carbon fabric structure perform is composed of body-centered cubes which arranged periodically at spaces. The net structure and shape of the pores of perform are determined by the size and proration of the fasciculus diameter, which are key factors influencing the gaseous permeability and final density of composites. Once the proration of the fasciculus diameters of different directions is determined, the trend of diversification of the permeability followed by pore rate during CVI process and the density of composites are stated, and the permeability increases with the increase of the fasciculus diameter.

研究结果表明：三维正交结构炭纤维预制体的宏观孔隙结构在空间上可以看成是由呈周期性排列的体心立方&晶胞&构成； X ， Y 和 Z 3个方向纤维束直径大小及比例关系决定三维正交结构炭纤维预制体宏观孔隙网络的结构和形状，也是决定反应气体在孔隙中的比渗透率和复合材料最终致密度的重要因素；当 X ， Y 和 Z 3个方向纤维束直径的比例关系一定时，不同预制体在CVI增密过程中比渗透率随孔隙率变化的趋势相同；复合材料的最终致密度一定；比渗透率随纤维束直径增大而略有增大。

Company in 2002 through the 'steam in the center' quality system certification and "φ3.2 mm diameter hydraulic vehicle brake hose assemblies" product certification, 2004 "φ3.2 mm diameter hydraulic vehicle brake hose assemblies" products Industry took the lead through the United States Department of safety that is' DOT 'certification.

公司2002年通过'中汽认证中心'质量体系认证及《φ3.2mm内径液压汽车制动软管总成》产品认证，2004年《φ3.2mm内径液压汽车制动软管总成》产品行业内率先通过美国交通安全部即'DOT'认证。

The contribution of water concentration on the growth of carbon nanotubes was investigated. Scanning electron microscopy results showed that the grown CNTs in CH4/H2 gas mixure had chain-shaped structure and the diameter was about 40—90nm. With the addition of proper amount of water, the diameter of CNTs became uniform, and the surfaces of nanotubes were fully covered with nano-sized node-like structures. When more water was added, branched carbon nanotubes were synthesized.

场发射扫描电子显微镜结果表明，不加水时，制备出的碳纳米管直径不均匀，分布在40—90nm之间，呈链节状的结构；加入少量水时，制备出的碳纳米管直径比较均匀，集中在70nm左右，表面为瘤状结构；当水的流量进一步增加时，得到的碳纳米管表面光滑，出现了枝状结构。

The solar power plant chimney,in which the height and diameter of the chimney are 200m and 10m,respectively.The solar collector with diameter of 500m would be able to produce 110～190kW electric power at monthly averag...

对以上三个地区的分析表明，一年内该电站月平均发电功率大约 110～ 190kW ，能为附近村庄提供电力，热风集热器还可用作农用大棚，为促进农业生产发挥积极作用。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。