扇形的

The composite wedges consist of two materials with equal apex angle and are perfect bonded at the interface.

是有限长的扇形角域或无穷长的角域，其解函皆由全平面的解函所叠加而成，函内只有径向的多项式函以及周向的简单三角函所组成。

The family coat of arms was carved in stone over the door,lovely roses twined themselves over the coat of arms and over the balcony, and a beautiful lawn stretched outbefore the house: there were red thorns and white thorns,and rare flowers even outside of the hot-house.

门上有一块石头刻着他们的族徽；这族徽的周围和门上的扇形窗上盘着许多美丽的玫瑰花。房子前面是一片整齐的草场。这儿有红山楂和白山楂，甚至温室外面也有名贵的花［——至于温室外面，那当然更不用说了。

Pathology and ultrastructure detection revealed cell necrosis and collapse, sever nuclear damage was observed in the death cells. The early characteristics of necrosis such as margination of heterochromatin was also found in some tumor cells. Besides, well differentiated tumor cells, degenerative tumor cells and some lymphocytes were seen.

直形针给药组肿瘤组织早期表现为大片的组织坏死，晚期表现为存活区域的增加，坏死区域与存活区域界限分明，两者间多有移行带；弧形针分段扇形注药者早期、晚期组织均表现为大片坏死，肿瘤间质内可见淋巴细胞浸润和纤维结缔组织增生；各时间段的检测标本中都可见一定数量的凋亡细胞，但比例远远小于坏死的肿瘤细胞。

This thesis establishes constrained motion model and sensor model of a mobile robot to represent mobility and perceptivity, respectively, and defines the k step reachable region to describe the states that the robot may reach. We show that the calculation of the k step reachable region can be reduced from that of 2k reachable regions with the fixed motion styles to k + 1 such regions, and provide an algorithm for its calculation.

首先建立了移动机器人约束运动模型和传感器模型用于描述机器人的移动和感知，给出了可达区定义，即机器人在有限步内可能到达的区域，在此基础上证明了在k步不同运动模式下多达2k个可达区的计算可以降为k+1个可达区的计算，并提出了k步可达区由k+1个扇形组成的计算算法。

Result: 1. The method of arc-needle injection with 131I-iodinated oil step-by-step sector-shapely improved obviously the drug distribution, comparing with routine linearity injection. 2. SPECT image reconstruction detect 131I-iodinated oil three-dimensional distribution quantitatively. 131I-iodinated oil metabolism equation may obtained by continuous measurements, in order to calculate absorption dose of p particle at target. 3. ZT glue lengthens obviously 131I-iodinated oil retention in mouse local subcutis and rabbit liver which can rise local radiation effect, decrease injury at normal tissue.

结果：1、弧形针分段扇形注射~(131)I-碘化油，比常规使用的线性注射明显改善药物弥散均匀度。2、SPECT断层扫描定量检测~(131)I-碘化油的三维分布，连续测量建立~(131)I-碘化油的代谢方程，并计算~(131)I对靶区的β辐射贡献的吸收剂量。3、ZT胶明显延长~(131)I-碘化油在大鼠皮下、兔肝脏内的滞留。

I-iodinated oil metabolism equation may obtained by continuous measurements, in order to calculate absorption dose of β particle at target. 3. ZT glue lengthens obviously 〓I-iodinated oil retention in mouse local subcutis and rabbit liver which can rise local radiation effect, decrease injury at normal tissue.

结果：1、弧形针分段扇形注射〓I-碘化油，比常规使用的线性注射明显改善药物弥散均匀度。2、SPECT断层扫描定量检测〓I-碘化油的三维分布，连续测量建立〓I-碘化油的代谢方程，并计算〓I对靶区的β辐射贡献的吸收剂量。3、ZT胶明显延长〓I-碘化油在大鼠皮下、兔肝脏内的滞留。

Upon entering the toll plaza, the flow of vehicles fans out to the larger number of tollbooths, and when leaving the toll plaza, the flow of vehicles is required to squeeze back down to a number of travel lanes equal to the number of travel lanes before the toll plaza.

进入收费区的时候，驶向大量收费亭的车辆呈扇形展开，而当车辆离开收费区的时候，车流将只能按照收费区前行车道路的数量排队按次序通过！

Upon entering the toll plaza, the flow of vehicles fans out to the larger number of tollbooths, and when leaving the toll plaza, the flow of vehicles is required to squeeze back down to a number of travel lanes equal to the number of travel lanes before the toll plaza.

进入通行税收费广场的时候，流到大量收费亭的车辆呈扇形展开，当离开通行税收费广场的时候，车流将只能按照收费广场前行车道路的数量排队按次序通过！

Computer simulation indicates that each item of POAS represents only a specific frequency range.

通过计算机仿真，发现正交多项式中每一项都基本上只代表特定的空间频率范围，根据相位度量的环扇形镜面面形空间频率分布，选择适当的正交多项式的项进行拟合，不仅能够节省运算时间，而且还可以保证拟合精度。

On Monday she moves into opposition with Pluto, in retrograde motion in your relationship sector since earlier last month and by Sunday she'll be putting pressure on the North Node, also in your relationship sector. It's on Sunday that Venus also aligns with the South Node, setting some personal and romantic bottom lines.

周一她将与冥王星一起移动到相反的位置，自上个月初起致使你的一段感情开始恶化，周日金星将会在北交点和你的爱情扇形中施加压力，重置个人和爱情的底线。

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。