间隙

By means of discharge test on air clearance of real size simulation tower head , the discharge characteristics of UHVDC tower air clearances under DC pre-voltage superimposed with switching surge are researched and the test data are obtained.

通过真型尺寸模拟塔头空气间隙放电试验，研究了特高压线路杆塔空气间隙在直流预电压叠加操作冲击下的放电特性，得到了叠加电压的试验数据。

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。

Flat Welding : choice of welding technology, electrode diameter, welding current, welding speed, the length of arc welding, weld process verification; Welding : welding inspection clearance groove, assembly space whether it meets the requirements, positioning it firmly welding, weld around is not oil, rust; Electrode temperature and baking time should be required, the rod removed from the oven. tempreture-constant drum on the electrode, then used as admission; Latin America : welding supply welding thickness, welding levels and electrode type and diameter, skilled welders and other factors, and to select appropriate welding current; fillet weld arc : fluctuations in the point arc weld end, they are advised more than 10 mm, is not hard arc, sparking arc weld zone from the electrode should be started immediately. Component integration and maintaining so-rod pieces have 2-4 mm gap arc.

1.1.2.1平焊：选择合适的焊接工艺，焊条直径，焊接电流，焊接速度，焊接电弧长度等，通过焊接工艺验证；清理焊口：焊前检查坡口、组装间隙是否符合要求，定位焊是否牢固，焊缝周围不得有油污、锈物；烘焙焊条应符合规定温度与时间，从烘箱中取出的焊条，放在焊条保温桶内，随用随取；焊拉电源：根据焊件厚度、焊接层次、焊条型号、直径、焊工熟练程度等因素，选择适宜的焊接电流；引弧：角焊缝起落弧点应在焊缝端部，宜大于10㎜，不应随便打弧，打火引弧后应立即将焊条从焊缝区拉开，使焊条块结合与构件间保持2～4㎜间隙产生电弧。

Flat Welding : choice of welding technology, electrode diameter, welding current, welding speed, the length of arc welding, weld process verification; Welding : welding inspection clearance groove, assembly space whether it meets the requirements, positioning it firmly welding, weld around is not oil, rust; Electrode temperature and baking time should be required, the rod removed from the oven. tempreture-constant drum on the electrode, then used as admission; Latin America : welding supply welding thickness, welding levels and electrode type and diameter, skil led welders and other factors, and to select appropriate welding current; fillet weld arc : fluctuations in the point arc weld end, they are advised more than 10 mm, is not hard arc, sparking arc weld zone from the electrode should be started immediately. Component integration and maintaining so-rod pieces have 2-4 mm gap arc.

1.1.2.1平焊：选择合适的焊接工艺，焊条直径，焊接电流，焊接速度，焊接电弧长度等，通过焊接工艺验证；清理焊口：焊前检查坡口、组装间隙是否符合要求，定位焊是否牢固，焊缝周围不得有油污、锈物；烘焙焊条应符合规定温度与时间，从烘箱中取出的焊条，放在焊条保温桶内，随用随取；焊拉电源：根据焊件厚度、焊接层次、焊条型号、直径、焊工熟练程度等因素，选择适宜的焊接电流；引弧：角焊缝起落弧点应在焊缝端部，宜大于10㎜，不应随便打弧，打火引弧后应立即将焊条从焊缝区拉开，使焊条块结合与构件间保持2～4㎜间隙产生电弧。

Displacements contour bands of Ti plates were investigated under different spacers, and pass rate of cladded plate reached 100% when spacer was 8 mm.

实验研究了不同间隙条件下复板运动过程的位移云图，并通过对实验结果进行比较与分析后，确定当间隙高度为8 mm时，爆炸焊接后复板上各点的最终位移都达到了8 mm，复合板结合率为100%。

By taking two typical uncontrolled crosswalks in Beijing as examples, a traffic investigation was made. Then, the critical crossing gap of pedestrian, the probability of safely crossing the gap and the total delay time of pedestrian were computed.

以北京市两个典型无信号控制人行横道为实例进行交通调查分析，计算行人的临界穿越间隙，安全穿越间隙出现的概率，及行人穿越该处的总延误时间。

Results At the 10th week after constriction,the structure of cadherin,desmosome and gap junction in intercalated discs were destroyed,gap of intercellular space widened.Pan-cadherin,Cx43 and desmoplakin distributed disorderly on the surface of cardiomyocytes.

结果 术后10周手术组心肌闰盘的粘着膜、桥粒、间隙连接结构模糊，连接间隙增宽；Pan-cadherin，Cx43，desmoplakin 在心肌细胞表面呈无序分布。

Our leading products, i.e., motorcycle brake disc, automatic slack adjuster and engine tappet have been in the world widely recognized. Air disc brake and electromagnetic fan clutch has successfully launched in the market. These products are marketed and distributed in Asia, Europe, North America and South America. We are one of the largest manufacturers and exporters of motorcycle brake disc, automatic slack adjuster and engine tappet in China.

集团主导产品两轮摩托车制动盘、汽车制动间隙自动调整臂、发动机气门挺柱均已成为国内外知名品牌，盘式制动器、电磁风扇离合器产品也成功推向市场，产品畅销亚洲、欧洲、美洲等几十个国家和地区，是国内最大的两轮车制动盘出口基地、国内最大的发动机气门挺柱和汽车制动间隙自动调整臂生产商。

Our leading products, i.e., motorcycle brake disc, automatic slack adjuster and engine tappet have been world widely recognized. Air disc brake and electromagnetic fan clutch has successfully launched in the market. These products are marketed and distributed in Asia, Europe, North America and South America. We are one of the largest manufacturers and exporters of motorcycle brake disc, automatic slack adjuster and engine tappet in China.

集团主导产品：两轮摩托车制动盘、汽车制动间隙自动调整臂、发动机气门挺柱均已成为国内外知名品牌，盘式制动器、电磁风扇离合器产品也成功推向市场，产品畅销亚洲、欧洲、美洲等几十个国家和地区，是国内最大的两轮车制动盘出口基地、国内最大的发动机气门挺柱和汽车制动间隙自动调整臂生产商。

The reason why secondary power model damage and high frequency relay disoperation usually has been explained, and the suggestions of protection and research are put forward. Systemic experimental study of waveform shape and frequency spectrum distribution of pulse electric field and pulse magnetic field is conducted with manufactured measuring systems. Waveform shape and frequency spectrum of pulse electric field and pulse magnetic field at different place including different impulse voltage and different gap are studied.

使用研制的测量系统对冲击电压放电产生的脉冲电场和脉冲磁场进行了系统的实验观测，得到了较为全面的不同电压、不同放电间隙和不同观测位置的脉冲电场和脉冲磁场的波形和频谱特征，研究了脉冲电场和脉冲磁场与冲击电压、间隙大小和高度的关系，研究了冲击电压放电产生的脉冲电场、脉冲磁场的分布特点等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。