中心体

The analytical results of Positron annihilation technology demonstrate that electronegative defect centers exist in the phosphor.

首次利用正电子湮灭分析手段，证实了SrAl〓O〓：Eu，Dy磷光体中存在带负电的缺陷中心。

The mathematical models of the delay of the GPS signal in the circumstance are put forward respectively. The computation of orbital arc of the two satellite constellations is based on two body problem and perturbations models. An algorithm based on the IRI model and thin layer model is used to simulate the ionospheric delay of the GPS signal. The error models of observation, multipath, relativity and antenna phase center bias are also researched. Under the consideration of the autocorrelation of the electronical measurements, the autoregressive model of time series is introduced into the noise models.

在信号仿真中，研究了利用二体运动和摄动法计算LEO卫星至GPS卫星星座的几何距离的问题；在信号的误差模型中，研究了电离层时延的IRI2001模型和单层投影模型；讨论了观测误差、多径效应、相对论效应和天线相位中心偏移的误差模型；结合电子测量噪声的具有自相关特性的经验，研究了观测误差的AR模型；结合实测数据分析，讨论了接收机钟差和卫星钟差的误差建模问题。

The location of the metacenter is an indication of the stability of a floating body.

定倾中心的位置表明了这一浮体的平稳性

The viewing frustum has an origin (0,0) at the center of the screen, while screen coordinates have an origin at the upper left of the screen.

视图锥截体的原点(0，0)在屏幕中心，而屏幕坐标的则在屏幕的左上角。

In order to get the strong convective cloud characteristics exhibiting in satellite images, about 20000 hourly gauge data of 333 surface rainfall stations and corresponding 4000 IR digital cloud images of GMS 4 during the period of 1992～1994 in Henan, Hubei and Sichuan provinces were analyzed.

对1992～1994年夏季四川、湖北、河南3省333个地面雨量站2万多个雨量观测数据以及与之相应的4千余幅GMS－4红外数字云图资料的分析结果表明，云顶温度、温度梯度、云团的膨胀、穿透性云顶的存在、云体相对于云团中心的偏离量与云的降水强度有着明显的对应关系。

Our hotel have 243 luxurious rooms, president suites, also two independent villa only for business; a 600 ㎡multifunctional hall, be equipped with Simultaneous Intonation Conference system; 7 specialized conference rooms are at your service; you can eat either in the Chinese restaurant or Western restaurant, the Western restaurant opens 24 hours a day; other recreation programs are available: swimming pool, tennis space, fitness center, night club, SPA, groggery. At here, you can relax yourself as you wish.

酒店拥有243间套豪华客房、总统套房及两幢独立的政务别墅；一个近600㎡并配备同声传译系统的多功能厅及7个专业会议室；拥有18间包房的中餐厅和24小时开放的西餐厅；还有游泳池、网球场、健身中心、夜总会、SPA、酒吧等完善的康体娱乐设施满足客户的全面需求。

Due to the entourage of scribes, attendants and aides that accompanied the Emperor on his journey to the centre of Nostramo Quintus, it is possible to accrue a detailed account of the meeting between the Emperor and Night Haunter.

借由陪同帝皇一同前往首都中心的身边的侍从们，议员们和助手们，帝皇和暗夜幽魂的会面被详细的纪录下来，尽管在这段时间帝皇的某些言语造成了对基因原体的伤害。

The generation materials of the reservoirs in Luo151 igneous oil pools consist of Intergranular micropore hornfels, condensate blowhole-solution void diabase condensate edge, the edge and center of the condensate seam diabase, of which are divided into horizontal, vertical and reticulated cracks according fracture occurrence.

研究区火成岩油藏储集层成因类型可分为晶间微孔隙角岩、冷凝气孔-溶蚀孔辉绿岩冷凝边、冷凝缝辉绿岩体边缘及中心带，其中冷凝缝辉绿岩带根据裂缝产状可以进一步分为水平、垂直和网状裂缝等类型。

The X-ray structure analysis reveals that the metal is in a square-planar N2O2 coordination environment formed by the phenolate-O, the imine-N and the deprotonated amide-O atoms of hydrazone ligand and the N atom of Himdz.

配合物的晶体结构分析表明，中心金属通过酰腙配体的酚基氧原子、亚胺基氮原子、去质子酰胺氧原子以及咪唑的氮原子形成平面四方形的N2O2配位环境。

The cube integration operator is used to complete the process of the cube for management center.

再以方体整合运算方式处理联盟管理中心的资料处理作业。

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。