查询词典 double space

Chavent's research for matching the history of production in a field by use of optimal control theory and through the research for the space of the adjoint function, we have extended the theory of adjustment for the ease of a single-phase system to a double-phase one.

Chavent利用最优化理论研究油气藏生产动态拟合的基础上，通过对伴随函数空间的研究，将辨识理论由单重介质系统扩展至双重介质系统，并针对原方法多解，迭代中易发生逸出、振荡、仅收敛于局部极小等困难，重点研究和探讨了改善问题的适定性和加速算法的收敛性问题。

On the basis of the probe and research into space analytic geometry and seeing from the students ' thinking characteristics , this paper has got a proof about three vector double vector product theorem .

本文通过对空间解析几何的研究和探讨，从学生的思维特点出发，给出一个有利于学生认知结构形成的三矢量的双重矢性积定理的证明

A structure of space-time diversity virtual double-route weighting interference mitigating is proposed, and the corresponding practical algorithm is derived in detail using block matrix inversion formula and matrix inversion theory for mitigating interference signals from both other cells and other users of local cell in the DS-CDMA up-link communication case. Performances of such algorithm are thoroughly analyzed through simulation and analytical results. The up-link and down-link channel characters and their relationship of DS-CDMA communication system are thoroughly analyzed, and the relationship of space-time diversity weighting matrix between time division duplexing and frequency division duplexing these two different transmission ways is derived.

本论文深入地比较了DS-CDMA通信系统的上传情形与下传情形的信道特性及其它们相互之间的关系；深入地分析并得到了时分双工和频分双工两种不同的传输模式下的上传情形与下传情形的空时分集权系数矩阵之间的数量关系，从而使得能够利用在基站端所拥有的上传情形的空时分集接收权系数矩阵信息以及其他信息在基站端直接形成空时分集发射权系数矩阵；推导了下传情形移动用户接收机端的最优组合接收策略及其算法；进一步地，对时分双工传输模式下的下传情形的通信系统性能和频分双工传输模式下的下传情形的通信系统性能进行了深入的比较仿真研究。

The overall design focuses on a 'box within a box' concept (inspired by conceptual artist Dan Graham's work with transparency and reflection) incorporating the isolation of different living space areas: the mezzanine, the new back extension and cubes that resourcefully double up as furniture and smaller corridors, all inform one another without physical contact - maintaining an optimum fluidity of space.

整个设计围绕着"盒中盒"的设计理念（受概念艺术家Dan Graham作品中的"映像和透明"所启发），并将不同的生活区分离开，将夹层，后屋延伸，和立方体巧妙地进行结合，配以更简洁和家具和缩小的走廊——所有这些使得居室布局显得丰富动感而不局促。

Since there is natural different of the kinematic density formula for pairs of intersecting lines in two-dimensional surface and three-dimensional space, the inequalities for double chord-power integrals have studied from two side of two-dimensional surface and three-dimensional space using chord-power intergral inequality. Schwarz inequality. Holder inequality and so on.

由于二维平面和三维空间上的相交直线偶的运动不变密度公式有着本质的不同，本文从二维平面和三维空间两个角度，利用弦幂积分不等式，Schwarz不等式，Holder不等式等不等式分别得到了一系列双弦幂积分不等式。

When you want to spinning the yarn which slubby length and space is very short,such as slubby length+slubby space≤5cm(the wide is double,it is longer when the wide is wider),the speed of the front roller is limit to not more than 200 rpm.

对于纺一些节长、节距都很短的竹节纱，也就是节长+节距≤5cm(指的是粗度2倍，如节粗更粗，相应长些)的情况下，限制要求为前罗拉速度不能大于200转。

While the switching overvoltage is 1.8 pu,the minimum air clearance of upper space and lower space on ±660 kV DC double-circuit transmission line tower is 4.8 m and 4.9 m respectively at the attitude below 1 000 m, when at the attitude of 2 000 m, the minimum air clearance of upper and lower spaces is 5.4 m and 5.5 m respectively.

最后，结合宁东-山东直流输电工程的实际情况，在1.8pu操作过电压下，对于海拔1000m及以下地区，±660kV同塔双回塔头的上层空气间隙距离建议为4.8m，下层空气间隙距离建议为4.9m；当海拔为2000m时，这2个距离分别建议为5.4m和5.5m。

A quasi-double layer perforated structure, with veneer as walls, its space between being 0.08 cm, is built when the outer wall is perforated, with each aperture 1 mm, space length 1.5 cm, and the hard sound absorption material is added to the supported.

该隔声室利用胶合板作为双层墙壁材料，两墙壁间距离为0.08cm，外墙壁均匀穿孔，孔径为1mm，间距为1.5cm，并在支撑物上加垫较硬吸声材料组成准双重穿孔隔声结构。

Double-tap the space button in any application (with the on-screen keyboard) and it will add a period, a space, and automatically switch to upper-case for the next key.

双挖掘空间按钮，在任何应用程序，它会添加一个时期，一个空间，并自动切换到大写的下一个关键。

Double-tap the space button in any application (with the on-screen keyboard) and it will add a period, a space, and automatically switch to upper-case for the next key.

双挖掘空间按钮在任何应用程序，它会添加一个时期，一个空间，并自动切换到上层的情况，为下一步的关键。

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。