Far field directivity of built-up circular piston sound source;
组合圆形活塞声源远场指向性理论研究
A built-up circular piston sound source is established in this paper.
依据本文构造的组合圆形活塞声源,导出了该声源远场指向性公式,并对其正确性和有效性进行了仿真研究。
The assembled tube was made of beryllium tube and tungsten tube, and was produced by over fitting.
组合圆管外层为铍管,内层为钨管,二者通过过盈配合形成。
The first part is about the new concept of circle combination,and the second part includes 7 groups of combinatorial twin identities,which are composed of corresponding circle combination identities belonging to combinatorial identities.
全文分为两部分:第1部分是圆组合新概念;第2部分是组合恒等式对应圆组合恒等式组成的7组孪生组合恒等式。
Dynamic Response Analysis of Underground Cylindrical Composite-lining Cavern Subjected to Seismic Waves
地下圆形组合衬砌洞室在地震波下的动力反应分析
Experimental analysis on friction hydro pillar processing of cylindrical coupling of 2024 aluminum alloy
2024铝合金圆柱形组合的FHPP试验分析
Combined Standard Appliance With Arc Formation Angle Block Used to Check Taper Raceway
检验圆锥滚道用弧形角度块组合标准器
anything with a round or oval shape that is closed or nearly closed.
闭合或基本闭合的圆形或椭圆形物。
The series of current transformers are resin insulated， fully enclosed and busbar type. The iron core is circular and the secondary winding goes around the core before casting by epoxy.
本型电流互感器的铁心为圆环形，二次绕组匀绕制在铁心圆周上，用环氧树脂混合料浇注成形。
ANALYSIS OF COMPOSITE BENDING MOMENT DIRGRAMS UNDER BENDING AND BENDING DEFORMATON FOR ROUND SHAFT;
关于圆轴含有弯弯组合的合成弯矩图形状的讨论
Rolling bearings--Combined needle roller thrust roller bearings--Boundary dimensions
GB/T16643-1996滚动轴承滚针和推力圆柱滚子组合轴承外形尺寸
Open shape group and place this dot where negative logic is required.
打开形状组合并将此圆点放在需要负逻辑的地方。
Areal patterns may be rectangular or along concentric circles, depending on the nature of the noise and on the space available for the array.
面积组合可以是矩形的，或者沿着同心圆周布置，这取决于噪音的性质以及允许的组合间距。
To Monitor Deformation of 3D Circular Objects with Fitting Method
用拟合方法检测空间圆形物体的变形
The cable made up of strands is squeezed into a circular shape.
将钢丝束组成的缆挤压成圆形。
Limit Load and J-integral of Embedded Elliptical Cracks in Plates under Combined Tension and Bending
含椭圆形埋藏裂纹平板在拉弯组合作用下的极限载荷和J积分研究
Effects of Weave Structure on Shear Deformation of Annular Shaped Woven Fabric
织物组织对圆环仿形机织物剪切变形的影响
A cylindrical surface or solid all of whose sections perpendicular to the elements are elliptical.
椭圆柱与组成要素垂直的所有圆柱形表面或柱体的部分是椭圆形的柱体
A semicircular space in front of the stage used by the chorus in ancient Greek theaters.
半圆形区域古希腊剧场中舞台前为合唱队所用的半圆形地方
Copper and copper alloys--Circular waveguid tube
GB/T8894-1988圆形铜合金波导管
A pointed or rounded projection on the chewing surface of a tooth.
牙尖牙齿咬合面上的尖状或圆形凸起
Micro Drawing of 3003 Aluminum Alloy Cup;
3003铝合金微圆筒拉深成形研究