扇形

The dynamic spatial structure of fanning light is observed and which is responsible for the pulsation of the phase-conjugated light in the semilinear self-pumped phase conjugator.

标 签 光折变晶体半线性自抽运相位共轭器扇形散射光自脉动 photorefractive crystal semilinear self-pumped phase conjugator fanning light self-pulsation。

Gaobao ordinaary of Cortina an offset printing press due to business card printing and membership card-making the participation of the absence of water does not exist-and-ink to multicolor business card printing and membership card making overprinter, Business card printing and membership card manufacturing sector expansion greatly reduced, the fault can be made cards and membership cards produced 150 lines per inch prints.

矮不废的Cortina无火胶印机由于制卡和会员卡制作洋不有有火的避开，不活命火不朱不均的题目，多色制卡和会员卡制作套印精度矮，制卡和会员卡制作时扇形蔓延的障碍不小不小裁减，能制卡和会员卡制作150线/英寸的印品。

The shape of gold deposit often is sector, sandwich, cystiform and abnormity.

矿体的形态为扇形、板状、囊状和不规则状。

A tall, dioecious palm of tropical Africa and Asia that has large fanlike leaves.

扇椰子一种高大的雌雄异株的棕榈树，产于非洲的热带地区和亚洲，有大型扇形叶片

A tall,dioecious palmof tropical Africa and Asia that has large fanlike leaves.

扇椰子一种高大的雌雄异株的棕榈树，产于非洲的热带地区和亚洲，有大型扇形叶片

A large grouse, native to northern Europe and having dark plumage and a fanlike tail.

松鸡原产于欧洲北部的一种大型松鸡，具有黑色的羽毛和一条扇形的尾巴

A large grouseTetrao urogallus,native to northern Europe and having dark plumage and a fanlike tail.

松鸡原产于欧洲北部的一种大型松鸡，具有黑色的羽毛和一条扇形的尾巴

In this paper, the research object is the XM18 spherical generator, in order to improve the dynamic behavior of the machine tool, the following aspects have been studied in this thesis: Firstly, based on the elasticity theory and finite element analysis theory, the finite element models of the lathe bed, dovetail, dovetail shelf, headstock, fanlike plank and millhead shelf, which were the main parts of the spherical generator, were built up using ANSYS9.0. And based on the modal analysis theory and FEM technology, the free modal and the constrained modal analysis of the main parts were studied. Accordance to the analytical results, put forword methods to optimize the key parts.

本课题以XM18球面铣磨机为研究对象，为了提高其动态特性，本文主要从以下几个方面进行研究：首先，根据弹性力学理论和有限元分析的基本理论，利用ANSYS9.0软件建立了铣磨机的主要零部件床身、燕尾、燕尾座、主轴箱、扇形板和磨头座的有限元模型，利用有限元法对主要零部件进行了自由模态和约束模态分析，并根据分析结果对关键部件提出了改进方案。

Any of several Old World birds of the family Upupidae, especially Upupa epops, having distinctively patterned plumage, a fanlike crest, and a slender, downward-curving bill.

戴胜一种东半球戴胜科鸟类，尤指戴胜鸟，有特别的带花纹的羽毛，扇形羽冠，和狭长下弯的喙

Leaf blades on sterile branches usually flabellate,± as wide as long.

在通常扇形不育枝上的叶片，多少和长一样宽。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。