极小

The least norm solutions of symmetric and skew antisymmetric matrix equations (A~TXA, XA — YAD)=(D, 0)are also considered. 3. The least-squares solutions and the least norm solutions of the quaternion matrix equations AX = B and XD = E are studied by using

借助四元数的复表示方法，研究四元数矩阵方程组AX=B，XD=E的最小二乘问题和极小范数解的问题，并对主子阵约束下的方程组的解进行了讨论，得到了它们的显式表示。

Because of appearing empty aggregates in the time zone (the time zone do not include the information), we only establish the indeterminate grey differential equation according to the approximate condition of the differential equation.

利用灰色微分方程中的最小二乘估计参数：进而得到灰色神经网络初始的权值及阈值，这样使初始的权值和阈值更接近准确值，克服了以往BP网络中初始权值的随机性和不确定性，减少了网络的训练次数，提高了网络收敛速度和输出的精度，为避免网络训练陷入局部极小值也起到了重要的作用。

Later, in people's intellectual level of a significant increase, with the carriage, such as animal transport, but also the history of transport is a "huge" leap forward, and this is also relative to promote the inter-tribal, exchanges between the ruling and opposition parties to form a small area of a virtuous circle, soon after, water transport has gradually forming, but also the rapid development of transport being used on the battlefield in the Three Kingdoms period, each World War II will gather the best tools and transport operations (but no longer advanced only species breeding horses and bad horses very small difference between).

后来，在人们的智力水平有了显著提高后，有了马车等畜力交通工具，也算是交通工具史的一个"巨大"的飞跃了，这也相对的促进了部落间、朝野间的交流，形成小范围内的良性循环，之后不久，水上的交通工具也逐渐成型，不过交通的迅速发展也被利用在战场上，在三国时期，每次大战都会聚集最顶尖的作战工具和交通工具（不过再先进也只是良种马和劣种马间的极小的区别）。

Minute whiplike threads of protoplasm reduced to a microscopic .

原生质的条极细的鞭形螺纹；减小到极小的。

Minute whiplike threads protoplasm reduced to a microscopic .

原生质条极细鞭形螺纹；减小到极小。

At the same time liquid of raw material is sent to centrifugal atomizer at the top of dry chamber pumped by pump through filter. In which liquid of raw material atomizes small drops. Air and liquid of raw material flow and contact each other fully. The moisture vaporizes rapidly. Liquid of raw material is dried into finished product in a short time.

料液由料液槽经过滤器由泵送至干燥器顶部的离心雾化器，使料液喷成极小的物状液滴，料液和热空气并流接触，水份迅速蒸发，在极短的时间内干燥为成品。

However, because of the natural characteristics of the micro and small hole EDM, such as weak discharge energy, high pulse power supply frequency, unstable spark discharge states and small discharge gap, etc., there are still some key technical difficulties in its machining process need to be solved: the difficulties in real-time discharge states detection, in accurate control of machining process, in prediction of discharge states, in improvement of machining system precision and in on-line preparation of micro electrode, etc.

但是由于微细及小孔电火花加工自身具有的放电能量极微、脉冲电源频率高、难以获得稳定的火花放电状态以及放电间隙极小等固有特性，决定了其加工过程仍然存在放电状态实时检测方法单一、加工过程难于准确控制、放电状态难于预测、加工系统精度提高困难和微小电极在线制备困难等关键性技术难点，亟待突破和解决。

The reticulated vessel which has large cavity has thicker wall due to more elastic fibers and more smooth muscles and its endothelium is cuboidal epithelium which has rotundity karyons. But the reticulated vessel which has small cavity has thinner wall due to less elastic fibers and less smooth muscles and its endothelial cells are flat epithelial cells which have long-shuttle-shaped karyons. In some regions, the ducts are very small in diameter and thin of wall, and they become blood sinus in the end.

管腔大者，管壁厚，弹性纤维、平滑肌纤维多，内膜靠腔面内皮细胞多成立方状，细胞核端位近圆形；管腔小者，管壁薄，弹性纤维、平滑肌纤维少，内皮细胞扁平、排列稀疏，胞核长梭形；一些区域管径极小，管壁极薄，成为开放的血窦，只允许一个血细胞通过。

Stain-resistant—Fired with high tempurature above 1200℃.the products feature extremely low water absorption rate and extremely small surface pores .so stains are difficult to penetrate in.

耐污染——经1200℃以上高温煅烧，产品吸水率极低，砖面毛孔极小使污渍难以渗入产品。

Air is transfened into hot air by passing through the heater,and goesinto the hotair separator on the top of he dryer,then goes into the drying room evenly.at the same time liquid materials are sent to the centrifugal atomixer on the top of the dryer the the screw pump with stepless speed regulation,and atomized into timy dr-oplet which will contact hot air,then dried into dry product within shortest time.

空气通过加热器转化为热空气，进入装置在干燥室顶部的热风分配器，然后均匀的进入干燥室，同时通过无级调速的螺杆泵将料液送至装置在干燥室顶部的雾化器，使料液雾化成极小的雾化液滴，料液和热空气并流接触，水份迅速蒸发在极短的时间内干燥为成口若悬河，成品经干燥塔底部和旋风分离器排出，废气由风机抽出排空。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。