查询词典 double-precision

The general formulation of double refraction or internal double reflection with different directions of propagation vector and wave vector in a uniaxial crystal is analyzed in terms of the Huygens principle.

并讨论了在晶体内沿多个面的连续双折射双反射，分析了前一界面输出量和后一界面输入量之间的联系，得到多次双折射双反射后的光线方向和光波法线方向。

Considering both the phenomena of double refraction and internal double reflection, and the electro-optic effect in a crystal, all elements of n×n crossbar network are integrated in one birefringent crystal slab with electro-optic property.

通过综合考虑晶体的双折射和全内双反射现象，以及晶体的电光效应，将构成n×n纵横开关网络的所有单元器件都集成到一块具有电光效应的双折射晶体上。

In this dissertation, the optical implementations of integrated bypass-exchange switches and interconnection networks are investigated as the followings:(1) An electro-optic bypass-exchange switch integrated in a single substrate of birefringent crystal is proposed, which is polarization based, and consists of two beam splitters based on the phenomena of double refraction and inner double reflection and in-between an electro-optic modulator based on the electro-optic effect of crystal.

鉴于此，本论文从网络集成包装的角度出发，研究bypass-exchange开关和互连网络的光学实现，主要内容包括：(1)利用单轴晶体的双折射双反射原理和晶体的电光效应，设计了一种新颖的单块晶体集成的电光偏振控制型bypass-exchange光开关，将一个电光偏振控制型bypass-exchange光开关所必需的器件（两个光束分束器和一个电光调制器）集成在一块晶体上。

According to the boundary relations of the electromagnetic field, and based on the phenomena of double refraction and double reflection in crystals, the reflectivity and transmissivity are deduced at boundary when an extraordinary beam is incident from an isotropic medium upon a crystal or from a crystal to an isotropic medium with optical ax.

为分析非常偏振光在晶体表面的能量损耗，给出一种求解反射率和透射率的方法，即根据电磁场的边值关系以及晶体的双折射和双反射现象，求解晶体光轴在入射面内时，非常偏振光从各向同性介质入射到晶体和从晶体出射到各向同性介质两种情况的反射率和透射率的方法，并给出反射率和透射率的解析解，同时得到对于晶体光轴在入射面内的情况，光轴的取向对非常偏振光反射率的大小几乎没有影响，但对产生全反射的临界角θc影响较大的结论。

We booked a double room, with two double beds......

我们预定的是双人房间，两个双人床。。。。。。

To be specific,its generalized characteristic polynomial has positive double roots,which we proved further has only a double,root by using the affine transformation and inverse affine transformation.

为了更好地进行干涉判断，根据椭圆-椭圆外切的代数条件——广义特征多项式具有正的重根，以及进一步证明出的该正重根的唯一性结论，利用仿射变换和逆变换方法，推导出了椭圆-椭圆的不适合边界解析方程。

To be specific, its generalized characteristic polynomial has positive double roots, which we proved further has only a double, root by using the affine transformation and inverse affine transformation, his easy to detect interference accurately between two ellipses using NFB analytic equation.

根据该解析方程不仅可以直接对任意两个椭圆之间的干涉性做出精确判断，并且可由此绘出NFB的轨迹图，同时使用可视化方法给出了快速粗略的判断。

Methods:Ninetythree patients with root gangrenous perforative appendicitis were treated with laparoscopic appendectomy from Jun.2002 to Dec.2007,and the clinic data were summarized.When dealing with the appendical root,46 cases were used double Endoloop to ligate the appendical root or double titanium clips clipping,23 cases were directly used laparoscopic appendectomy to knot the appendical root,15 cases were used the interrupted suture appendectomy stump and fibrin glue coverage,9 cases of appendical remnant tissue were removed,covered with fibrin glue and placed silica drainge tube.

总结2002年1月至2007年12月应用LA治疗93例坏疽、化脓性阑尾炎合并穿孔患者的临床资料，术中处理阑尾根部时，使用 Endoloop阑尾根部双重套扎或双重钛夹夹闭46例，直接腹腔镜下丝线打结阑尾根部23例，间断缝合阑尾残端加医用生物蛋白胶覆盖15例，清除阑尾残余组织加医用生物蛋白胶覆盖残端，放置硅胶引流管9例。

Double son quarter the 铵 salt surface live is a type of new double with live sub- surfaces, it is pass to unite to connect 基 regiment 2 two close body at head 基 or tight depend head the 基 conjunction get up of compound.

双子季铵盐表面活性剂是一类新型的双子表面活性剂，它是通过联接基团将两个两亲体在头基处或紧靠头基处连接起来的化合物。

Double channel sequence image produced by infrared scene generator and real target sequence image of double channel imager--AGEMA THV900 are detected and fused, and the results are satisfactory. data fusion ; D S evidence theory ; target detection ; infrared image

对于弱小目标，复杂背景、大气传输和自身噪声的干扰，引起传感器量测的不确定性，通过 D- S证据理论对多传感器的证据进行数据融合，能够达到较好的目标检测效果。1 基本概率分配函数、置信函数和似然函数D- S证据理论起源于 Dempster早

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。