种球

A numerically stable recursive set membership state estimation algorithm for linear discrete-time systems with unknown but bounded noises is proposed, where ellipsoidal sets are adopted to describe the state uncertainties and to bound the process and observation noises.

针对带有未知但有界噪声的线性离散时间系统，提出了一种数值稳定的集员状态估计递推算法。算法采用椭球集合来描述状态的不确定性和噪声的界限。

The three-course meal cost included a choice of five entrees: shrimp gnocchi, pork shank, red mullet fillet, sausage or stuffed artichoke.

套餐有三道菜，其中主食有五种可供选择：虾球、猪腿肉、红鲻鱼排、香肠以及洋蓟菜泥。

A new method of transformation between the three dimension geocentric coordinate system and independent coordinate system in adjustment of GPS networks is proposed.Compared with the conventional methods,it is not based on the 54 or 80 national reference ellipsoid.

对于区域性独立坐标系与三维地心坐标系之间的互相转换，提出了一种在GPS网平差中不以54或80国家参考椭球为过渡的平差转换方法。

For getting the major characteristic edges without confusions by undesired structures like muscle edges, we integrate a star-like edge detection filter named "Asterisk Filter" with the Canny Edge Detection in the image preprocessing. In addition, we also propose a new contour tracking method named "One-Pixel Rolling Ball Contour Tracking" for getting the boundary information in a binary image which is a link-list data structure. Instead of using a regression curvature estimator, PCA is used for better curvature estimation from a discrete bony contour.

为了从影像上取得骨头特徵边缘，将不重要的肌肉视为杂讯滤除，我们引用一种星形滤波器－Asterisk Filter，搭配Canny边缘检测法，做为这类影像的前处理；另外，为了将骨头的边缘精确地追踪出来，我们提出滚球边界追踪法，来对二值化影像进行边缘追踪，藉此获得边缘的串列资料结构；我们采用以主成分分析(Principle Component Analysis，简称PCA)取代原本以回归方法来计算的曲率，以取得更佳的曲率估测值，其可提高计算之参数的准确性。

High percentage of rice bran oil is perfect for summer.

收集了几种颜色的皂球，配合清爽的米糠油，是很适合夏天的皂喔。

Most secondary schools have playing fields, and boys usually play rugger or soccer in sinter and cricket in summer as a normal school activity; while schoolgirls play tennis and a sort of baseball in summer and netball and hockey in winter.

多数中学都设有运动场地，男生们通常在冬季打橄榄球和足球，在夏季一般打扳球。女生们在夏天打网球和一种垒球，在冬天则是打无挡板篮球和曲棍球。

Mackey wholesale and retail seed and bulb merchants and nurserymen, agents for chemical manures, 23 Sackville street, upper, an orchard, kitchen garden and vinery protected against illegal trespassers by glasstopped mural enclosures, a lumbershed with padlock for various inventoried implements.

马凯伊爵士的股份有限公司，他是个种籽与球根批发兼零售商，苗木培养工，化学肥料代理商，住在上萨克维尔街二十三号）。果树园、蔬菜园和葡萄园各一座。为了防备非法人侵者，围墙上插满碎玻璃片。一间挂了锁的杂物棚，放置形形色色登记入册的用具。

Small angle laser scattering is an effective measurement of the polymers spherulite radius.

小角激光散射是一种有效的测量高聚物球晶半径的方法。

In this paper, we discussed several methods of technical innovation in Schlumberger's SFL resistivity tool and gave the best one.

本文讨论了对斯伦贝谢微球测井仪进行技术改造的几种方法，并给出了最佳方案

A second variation is an attached rope through middle of the ball.

第二种变化是在球中间附加绳子。

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。