扇区

The result of actual airspace design example validates the rationality of the sector optimization method presented in this paper.

通过实际空域设计算例的计算结果，验证本文提出的扇区优化方法的合理性。

The criterion of the globally asymptotic stability of equilibrium point is given via the method of constructing a suitable Lyapunov functional and sector condition.

通过构造适当的Lyapunov泛函及扇区条件，给出了平衡点渐近稳定的判定准则。

A 512 byte area of disk storage. Each disk sector contains two 256 byte disk data blocks.

一个512字节的磁盘存储区，每个磁盘扇区含有两个256字节的磁盘数据块。

Using the data and samples of the holes DSDP218,ODP717,ODP758 and some others from the northern Indian Ocean,in the paper we make a comprehensive study of them in sedimentology,micropaleontology and paleoceanography and establish a correlation of geological events since 9 million years recorded in proximal fan,distal fan and ridge,respectively.

本文应用DSDP218、ODP717、ODP758及其它来自东北印度洋的资料和样品，通过沉积学、微古生物学与古海洋学的综合研究，实现了9 Ma以来扇区近源相、远源相和岭区沉积记录中的事件对比。

A radio link within a sector can be identified by a single logical identification belonging to that sector.

一 个扇区内的无线链路可以用一个隶属于该扇区的单一的逻辑标识来进行识别。

The frequency and amplitude of wake force were deduced theoretically, while the influence of stator sector distribution and stator vane quantity on the wake force of vane was also discussed. Transient analysis was conducted for the forcing response of rotor blades under the same stator sector distribution and different quantities of stator vane, so an optimum asymmetry stator mistuned design was developed.

对不对称静子叶片非谐情况下激振力频率幅值进行推导，讨论了静子扇区分布和静叶数目选取对尾流激振力的影响，并对相同扇区分布不同静叶数目情况下转子叶片的强迫响应进行瞬态分析，给出不对称静子非谐设计的最优方案。

The occurrence frequency of upflows increases with geomagnetic activity.

在400km高度以上，高速行离子流发生率随MLT的分布呈现出晨昏不对称性；平静时发生在黄昏扇区的频次较高，而扰动时则在凌晨扇区的发生率较高。

For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型预测了现状开采条件下未来20年的地下水位和地面沉降的变化，在此基础上，提出了防治西安市地面沉降的五个地下水开采方案，利用所建的地面沉降模型对各个设计方案其进行了模拟和预报，对预测结果的分析表明：①封停自备井是防治地面沉降最为直接和最有效的对策，对防治地面沉降起着最为积极的作用；②采用人工回灌方法使被压缩的土层得到的恢复是非常有限的，对地面沉降不能起到根治作用，只有回灌量明显大于开采量时才能有一定的效果；③&调整开采层次，在浅层取水&对防治地面沉降的效果十分明显；④布设&砂井&可以增加对承压含水层的越流补给量，从而可以有效地缓解和控制地面沉降的发生和发展；⑤对西安市的地下水开采，可在河流阶地区、冲洪积扇区和黄土塬区分别采用1600m、2000m、1600m的井间距布置应急自备井，分别采用2500m~3/d、1500 m~3/d和200 m~3/d的单井开采量，开采第一承压水，在平水年或者丰水年不开采，涵养地下水源，在枯水年启动这些应急自备井开采，在输出分析范围内共可获得162000 m~3/d(5913万m~3/a)开采量，可以有效地补充西安市的供水水源，缓解供水紧张局面，开采年开采导致的下降的水位可在停采3～4年后得到基本恢复，同时，这种开采方式不会造成大的地面沉降量。

At mid latitude, most negative phase onsets are within the night to early morning sector, and they are rarely occurred in the noon and afternoon sectors.

在东亚扇区，中纬区负暴开始时间主要分布在夜间及清晨时段，且在正午至午后时段极少发生。

Next we load drive number into dl register, head number into dh register, track number into ch register, sector number into cl register and the number of sectors to be transferred to registeral.

载入驱动器 ID 到 dl 寄存器，磁头号到 dh ，磁道号到 ch ，扇区号到 cl ，扇区数到 al 。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。