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While the switching overvoltage is 1.8 pu,the minimum air clearance of upper space and lower space on ±660 kV DC double-circuit transmission line tower is 4.8 m and 4.9 m respectively at the attitude below 1 000 m, when at the attitude of 2 000 m, the minimum air clearance of upper and lower spaces is 5.4 m and 5.5 m respectively.

最后，结合宁东-山东直流输电工程的实际情况，在1.8pu操作过电压下，对于海拔1000m及以下地区，±660kV同塔双回塔头的上层空气间隙距离建议为4.8m，下层空气间隙距离建议为4.9m；当海拔为2000m时，这2个距离分别建议为5.4m和5.5m。

Coal pipe arrangement with upper and lower air broadcast broadcast coal coal coal, wind and sent the wind, in the burning rice husk, it is necessary to open the upper and lower coal-air broadcast, so that rice husk into the furnace can be more gentle.

给煤管上布置有上播煤风及下播煤风以及送煤风，在燃烧稻壳时，要开启上、下播煤风，使稻壳能比较平缓的进入炉膛。

Special localized cutting communication with the customer; 2.5 If not available notched hole diameter less than 60 mm hole, can be used to be relatively enlarger for the opening; After opening 2.6 backplane approach, starting with the opening negative, positive exposed bit sharp, nated from the positive control (both sides maintain collapse teeth); 3 connected corner of the corner of the 3.1 connection method, identify three Kok code on the middle and lower (50 mm poured from top to bottom. Another try a) 3:00 even in the corner of the counter and cross wooden cabinet on the sideboard; 3.2 corner of the Outer Limits with a shutter-ping; 3.3 In accordance with the drawings corner of the size, will have a fixed angle of the black reinforce the lower corner with 3:00 counters even

特殊局部地方的切割必须与客户沟通； 2.5如割口不大可用圆孔、直径小于60mm孔，可用相对应的扩孔器进行开孔； 2.6后背板开孔方法，先从反面开孔，正面露出钻头尖时，再从正面往里操作； 3 转角条的连接 3.1转角条的连接方法是，找出三个角码，上中下（上下50毫米往里，另居中一个）三点连在与转角柜交叉柜体的侧板上； 3.2转角条的外沿与门板一平； 3.3按照图纸转角条尺寸，将已固定的转角条用黑钉上中下三点与转角柜连

gap by law easy to use, easy to grasp, apply to the relatively high crown boneless resistance, resistance to a small adjacent teeth, the roots for the integration of the root or the root bifurcation cases, such as low lower the removal of impacted wisdom teeth; split crown law Requirements, flexibility in operation, more suitable for medium and low impacted significantly ditch and development, the root fork or a higher resistance to a larger adjacent teeth, and other cases, the lower-third-molar extraction.

结论增隙法操作方便、易于掌握，比较适用于高位、冠部无骨阻力、邻牙阻力小、根部为融合根或根分叉很低等情况下下颌阻生智齿的拔除；劈冠法要求条件高、操作灵活，比较适用于中、低位阻生且发育沟明显、根分叉较高或邻牙阻力较大等情况下下颌阻生智齿的拔除。

With regards to the learning motive of music, after excluding the pretest influence, it is the finding of the study that the students belonging to the experimentation group score higher in the areas of "Total score","Internal goal orientation","Work value","Controlled belief","Expectation to succeed" and "Test on anxiety" than the control group, amongst which "Work value" reaches significant difference on the measurement chart; of all the students scoring high on "Selective attention" during pretest, the experimentation group scores higher than the control group on posttest scores; regarding the students with lower pretest scores, the control group performs better than the experimentation group; of the students with higher pretest scores on "Discrete attention", the posttest scores of experimentation group are higher than those of the control group; regarding students with lower pretest scores, the control group performs better than the experimentation group; on "Sustained attention", the posttest scores of the experimentation group are higher than those of the control group; on the "Total score" of multidimensional attention measurement, the posttest scores of the experimentation group are higher than those of the control group.

研究结果发现，在音乐学习动机方面，经排除前测影响后，实验组学生在「总分」及「内在目标导向」、「工作价值」、「控制信念」、「期望成功」、「测试焦虑」等分量表上皆高於对照组，其中在「工作价值」分量表上达到显著性差异；在「选择性注意力」前测分数较高学生中，后测成绩为实验组显著优於对照组，对前测分数较低学生而言，则是对照组显著优於实验组；在「分离性注意力」前测分数较高学生中，后测成绩为实验组显著优於对照组，对前测分数较低学生而言，则是对照组显著优於实验组；在「持续性注意力」方面，后测成绩为实验组显著优於对照组；在多向度注意力量表「总分」方面，后测成绩为实验组显著优於对照组。

The SiO2 content of the dike swarms varies from 50.22% to 61.10% and they are basic-intermediate rock series, mainly basic. The Al2O3 content is generally higher than 15% and they are high aluminum basaltic rocks. The lower magnesium index (Mg#=42.77~62.28) and TiO2 content (0.97~2.41%) illuminate that they suffered magnesium-iron minerals' fractional crystallization and that they did not crystallize from original basaltic magma. The values of Na2O/K2O are all above 1, indicating lower K character. Chemically discriminated, these dike swarms are sub-alkaline rock series.

岩墙群的SiO2含量为50.22~61.10%，属于基性和中基性岩类，以基性为主；它们的A12O3含量普遍高于15%，属高铝玄武岩类；具有较低的镁指数（Mg#=42.77~62.28）及TiO2含量（0.97~2.41%），说明它们经历了镁铁质矿物的结晶分异作用，也指示它们不是由原始玄武岩浆结晶；Na2O/K2O都大于1，显示出低钾的特点；岩石化学判别，岩墙群岩石属亚碱性系列。

Our result shows that the best double couple solution of this Mw5.2 event is 315°,64°and 19°for strike,dip and slip angles respectively,the second nodal plane solution is 214°,74°, and 152°.The focal depth is 25±2km,suggesting that this quake occurred in the lower crust which is much deeper than most continental earthquakes.This lower crust earthquake requires that the rock should be colder than expected.We proposed generation mechanism of this deep earthquake and its implications in rock strength and thermal state.

我们以此速度结构作为模型，利用中国国家地震台网5个台站的宽频带地震数据，采用CAP方法反演2003年8月16日赤峰地震震源机制解并初步确定震源深度：再利用IRIS 9个台站远震体波数据，通过对比高频(0.7～2.0Hz)理论地震图和观测记录的方法进一步精确确定震源深度并验证反演得到的机制解，得出此次地震矩震级为5.2，震源机制解为：节面I：315°/64°/19°，节面Ⅱ：216°/74°/152°，震源深度为25±2km，已深达下地壳。

Species diversity in three types of vegetation were relatively higher in August, and lower in May. Species diversity of vegetation was highest in the reconverted grazing land, lower in the semi-fixed dune land, and lowest in the natural reconverted farmland. The stability of vegetation in the reconverted grazing land was relatively high and strong buffering function to changing environment among three types of vegetation.

放牧自然恢复地植被的物种多样性相对较高，半流动沙地相对较低，退耕自然恢复地最低，这说明相对于半流动沙地和退耕自然恢复地，放牧自然恢复地稳定性相对较高，对环境波动的缓冲功能强。

The southwest vortex restricted the development of the plateau vortex in some way at the early stage when it appeared in the lower atmosphere. When they were coupled longitudinally, the vertical difference caused by the different vorticity advections between the upper and lower levels excitated the updrafts under 500 hPa and strengthened cyclone vorticity, and then the positive vorticity at 500 hPa and 700 hPa increased by two times The change rate of positive vorticity facilitated the plateau vortex to move eastward.

分析表明：高原涡与西南涡涡心之间的纬向距离在5个纬度的时候，两者上升气流都在500 hPa以下，当两者继续东移，在经向上耦合的时候，二者同时得到发展，西南涡中心的上升气流达到300 hPa，而高原涡中心的上升气流突破200 hPa；西南涡在低层出现初期，在一定程度上制约了高原涡的发展，随着两者在经向方向发生耦合，上下涡度平流不同造成垂直差动，将激发500 hPa以下的上升运动与气旋性涡度加强，使得500 hPa与700 hPa涡心正涡度值的增大近 1倍。

Feedback ammeters with high value sensing resistors in the feedback loop have lower Johnson current noise and thus greater sensitivity than shunt ammeters with lower resistance shunts.

反馈安培计反馈回路中的取样电阻阻值高，其约翰逊电流噪声就比较低，从而比分流电阻值低的安培计的灵敏度更高。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。