区

By solving management model, the optimal groundwater withdrawal 〓 of the Wuwei Basin in two irrigation periods are obtained,〓 shows that the pumping condition of groundwater in the region can divided into six sub-regions: the pumping sub-region with maximum 〓 is located in the river courses; the sub-region with minimum 〓 in the spring overflow zone; and non-pumping sub-region in the 〓 irrigated districts and desert area, and that the unique way to crese groundwater pumpage is to pirate evapotranspiration in the oundwater evaporation zone.

通过管理模型的运转，获得了武威盆地平水年、枯水年、丰水年三个典型年份各灌期地下水的最优开采方案。按年最优开采模数，区域地下水的开采条件可分为六个区，地下水最强的开采区位于出山河流的主河道、石羊大河和洪水河沿岸，最弱的地区为泉水溢出带，河水谨区和沙漠区下开采地下水。同时表明，袭夺潜水蒸发量可增加地下水的开采量，该区现状条件下增加地下水的开采量的唯一途径是袭夺潜水蒸发带地下水蒸发量。

A study is undertaken of the climate base state of the northern winter sea level pressure and its climate variability and temporal evolution, indicating that the base state has its high-value region of means quare deviation in the Aleutian low, the northwest part of the Iceland's low and the Siberian high.

研究了近100多年冬季北半球海平面气压场的气候基本态、气候变率的特征及时间演变规律。指出北半球冬季海平面气压基本态的标准差的高值区在北太平洋的阿留申低压区、冰岛低压区的西北部及西伯利亚高压区。

The welding nugget happened to dynamically recrystallize and the refined crystal grains were obtained and the majority of Mg_2Si particles dissoluted due to the intensive mechanical stir and higher high temperature. In the thermal-mechanical affect zone that was heated under the recrystallized temperature, the crystal grains were elongated due to the mechanical stir and Mg_2Si particles partly dissoluted and the others grew. In the heat affect heat without the mechanical stir, to some extent, both of the crystal grains and the majority of Mg_2Si particles grew.

焊核区受到强烈机械搅拌作用和加热到较高的温度发生动态再结晶，得到细小等轴晶组织，Mg_2Si相以溶解为主；热机影响区加热温度低于再结晶温度，在机械搅拌作用下晶粒由于塑性变形而伸长，Mg_2Si相部分溶解，部分长大；热影响区仅受加热影响，晶粒有一定程度长大，Mg_2Si相以长大为主。

Post-mining or gob preventive injection, sand-filling or sealed separation in the gob with potential spontaneous fire, Visional judgement or index jndgement for prediction, nitrogene-injection for fire prevention, and control, spraying oxidation retardent to delay coal oxidati...

同时提出某些预防煤田自燃发火的对策——采后或采空区预防性注浆；对可能产生自燃火灾的采空区注砂或充填，加以封闭隔离；采用直观判断、指标判断等方法进行预测预报：注氮防灭火；喷涂阻化剂以延缓煤氧化；选择合理的开拓方式和回采方法：选择合理的通风系统和利于防火的通风方式；控制向采空区的漏风等。

Methods: One hundred patients with OSAHS were enrolled in this study and divided into two groups: the stricture group (24 cases) and the nonstricture group (76 cases). The dimension of the lingual region airway, the thickness of the retropharyngeal and the lateral pharyngeal tissue, and the width and length of the tongue were determined.

对经多导睡眠监测系统(polysomnography， PSG)确诊的100例OSAHS患者，采用螺旋CT行上呼吸道连续扫描，测量舌后区呼吸道横截面积，对存在舌后区呼吸道狭窄（24例）和无舌后区呼吸道狭窄（76例）的两组患者进行对比研究。

We comprehensively investigate and discuss the relation in the tetragonal,rhombohedral and coexistence phase region of PZT.

我们对PZT四方相区、三角相区和混合相区介电常数与晶格畸变的关系进行了全面研究和探讨。

29Si NMR spectra indicate that SAPO-11 sample with an Si/Al of 0.33 significantly enhances the neighboring region between SAPO region and Si region, and NH_3-TPD results also show it has higher strong acid/weak acid ratio.

33的SAPO-11的SAPO区与Si区的交界区明显扩大，与之对应的NH_3-TPD也表明有较高的中强酸/弱酸比例。

The evergreen broad leaved forest is divided into four regions: Japanese region, Eastern Chinese region, Western Chinese region and Western Chinese sclerophyllous distributing region.

将亚洲东部的常绿阔叶林划分为4个区：日本区、部东部区、国西部区和中国西部硬叶分布区。

Through the microstructure analysis, it is found that there are ferrite, spiculate bainite in base material, weld metal area and heat-affected zone, and there is much dispersed Fe3C on ferrite and bainite, which indicates that weld joints of steel B610CF have better strength and toughness.

金相分析表明，焊接接头的母材区、焊缝区和热影响区组织均为铁素体和下贝氏体，在铁素体和贝氏体上还弥散分布着渗碳体，说明焊接接头的强度和韧性都较好。

Perforated, compression molded foam back panel with airflow channels Dual density, yokestyle shoulder harness with airmesh Sternum strap with Safe-T whistle Stowable hipbelt Hydration compatible Internal organizer Front stash pocket X-bungee Light loop Rain cover Reflective hits Side water-bottle pockets Molded back panel with breathable mesh BackSaver bottom panel Top-access dedicated laptop pocket with elastic compression Padded bottom power-cord pocket Front electronics organizer with hanging pocket and audio port Large main compartment Mesh water-bottle pockets Small mesh pocket on shoulder strap Bottom compression Tuck-away hipbelt Front daisy chain with Hypalon reinforcement Safe-T whistle on sternum strap

穿孔， 压缩铸造了泡沫后面盘区以气流渠道双重密度， yokestyle 肩膀鞔具以airmesh 胸骨皮带以安全T 口哨 Stowable hipbelt 水合作用兼容内部组织者前面藏匿处口袋 X 橡皮筋轻的圈雨盖子反射性命中旁边水瓶口袋被铸造的盘区以适于吸入的滤网 BackSaver 底下盘区上面通入热忱的膝上计算机口袋以有弹性压缩被填塞的底下力量绳子口袋前面电子组织者以垂悬口袋和音像口岸大主要隔间滤网水瓶口袋小滤网口袋在肩带底下压缩卷起hipbelt 朝向雏菊链以Hypalon 增强安全T 口哨在胸骨皮带

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐