查询词典 two dimensions

Bitemporal databases permit queries over two orthogonal time dimensions: valid time and transaction time.

时态数据库，允许在两个正交的查询时间方面：有效的时间和交易时间。

Before this two weeks time, the curule group that Ma Yun is heading 10 people dimensions all the time inspects a visit in and other places of American Silicon Valley, to in the North America mainland of atrophy of heart of economic low superstition brings an Alibaba tornado.

此前两周的时间，马云一直率领着10人规模的高官团队在美国硅谷等地考察访问，给正深处经济低迷信心萎缩的北美大陆带来一阵阿里巴巴旋风。

Performance prediction of the pump when transporting water and salt solution is also studied.Results are compared and analyzed with experimental data.6.The salt-out flow field is measured on three dimensions by Particle Image Velocimemter via radial and axial two test models.After image processing, velocity distribution of crystal particles in the pump is obtained.Particle flow field is visualized to reveal the particle motion law intuitionally.

此外对泵送清水和盐溶液时的性能也进行了预测，并将结果与外特性试验数据对比。6、运用PIV在径向和轴向两种测量模式下对泵内不同外部条件下盐析两相流场进行了准三维测量，经图像后处理，获得了盐析晶体颗粒在叶轮内、无叶腔中及轴面上的速度矢量分布，实现了颗粒流场的可视化，更为直观地揭示了泵内盐析颗粒的运动规律。

Topics covered include oscillations, Keplerian orbits, two-body scattering, rotating frames of reference, rotation of rigid bodies in three dimensions, Lagrangian mechanics, Hamiltonian mechanics, and coupled oscillations.

内容包括振荡，开普勒轨道，两体散射，旋转参考坐标系，在三个方面，拉格朗日力学，哈密顿力学刚体转动，和耦合振荡。

The clinical characters of oligodontia concluded from this study are following:(1) There is significant difference that more teeth absent and more existent teeth anomalies in patients of oligodontia/S group than in patients of oligodontia/I group, and the peg-shaped upper lateral incisor is the most frequently affected teeth with shape anomaly.(2) Both of the two groups have no significant differences in number of teeth missing between maxilla and mandible as well as that between left and right side.(3) The distribution of teeth missing is bilateral symmetry in both groups, but the frequency of teeth lost are different: excluding the third molar, in oligodontia/I group, the lower second premolar is the most frequently congenitally missing tooth followed by the upper lateral incisor, while in oligodontia/S group, the most frequently missing teeth are mandibular canine and maxillary lateral incisor. Nevertheless, the first molars are the most stable teeth in both groups.(4) In oligodonita/I group, the mean mesiodistal dimensions of all type of existent teeth are significantly smaller than normal value. It is implied that oligodontia is not an isolated phenomenon, but is related to a complex of other dental changes.

对于口腔多个恒牙先天缺失的临床特点有以下初步结论：(1)综合征型先天缺牙患者较单纯型先天缺牙患者恒牙缺失数目更多，平均分别为23.9个和14.9个，且现存牙齿有更多的形态异常，分别为7／10例（70％）和6／22例（27.3％），其中最常见的是上颌侧切牙畸形；(2)两种类型的多个恒牙先天缺失患者的缺牙数目在上下颌及左右侧之间均无差别；(3)两种类型的多个恒牙先天缺失患者在缺失牙位上均呈对称分布，但在具体牙位上有所差异：不计第三磨牙，单纯型先天缺牙最常缺失的牙位是下颌第二双尖牙、其次为上颌侧切牙；而综合征型先天缺牙最常缺失的牙位是下颌尖牙和上颌侧切牙；无论何种情况，第一磨牙均为牙列中最稳定的牙齿；(4)在单纯型先天缺牙患者中，现存恒牙的牙冠宽度较国人正常值偏小，差异显著，提示牙齿形态与多个牙先天缺失有一定相关性。

Finally, The observability of two passive TMA in three dimensions is proved using this criterion.

最后针对实际中的两种水下三维情形的被动TMA系统，用上述准则论证了它们的可测性。

By using two precombustion chambers in the boiler SHF-20/13 made by the peking Boiler works,the volumetric heat releasing rate of the furnace has attained the value of 240 x 103 kcal/m3h, the dimensions of the boiler are greatly reduced, the weight of the steel used is reduced about 35 percent.

北京锅炉厂制造的 SHF－20／13型锅炉在采用煤粉予燃室后，锅炉炉膛体积热负荷高达 240x103［大卡／米3时］，锅炉外形尺寸大为缩小，约可节省钢材35％。

Computer Aided Diagnosis Axiography is precise and reliable during the record of condyle movement. On the basis of traditional face bow system, CADIAX use two styli in order to computer the hinge axis; the styli is near to the condyle which diminish the enlargement error and make the record more reliable. Computer technique is adopted by CADIAX, which give a more comprehensive analysis of condyle movement, which can observe the condyle movement in four dimensions. The position of mandible during recording is started from Reference Position, the mandible is posited at a retral position, a more physiological position, and the result is close to reality.

髁突运动轴图描记仪(Computer Aided Diagnosis Axiography)可以准确、可靠的记录分析髁突运动，在传统的面弓记录仪基础上，采用双髁突指针，可以准确计算绞链轴点；测量点与被测髁突距离接近，测量结果更加真实可靠；与计算机技术相结合，数据分析功能更加强大，对髁突运动可以进行四维分析，同步观察双侧髁突的时相特征；记录位置选用参考位置，下颌处于生理后位，记录结果更接近真实情况。

Seventeen simply supported beams with the dimensions of 150 × 250 × 2600mm include nine secondary-load reinforced concrete beams reinforced by CFRP, six RC beams strengthened with CFRP directly and two unstrengthened control beams were experimentally investigated.

本次试验共设计了17根截面尺寸为150mm×250mm，梁长为2600mm的试验梁，其中9根为碳纤维布加固的具有不同初始荷载的钢筋混凝土梁，6根为碳纤维布直接加固的钢筋混凝土梁，2根为对比钢筋混凝土梁。

A SP firm chief expresses to the reporter, a few companies are entering development drive because of the investment of VC, another some of company criterion because user dimensions is insufficient and be in a devil of hole,"In the near future in, these small companies have two ways only, or is bought by big company, or exits the market finally."

一位SP厂商负责人向记者表示，一些公司正因VC的投资进入发展快车道，另一些公司则正因用户规模不够而处境艰难，&未来几年中，这些小公司只有两条路，要么被大公司并购，要么最终退出市场。&

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。