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But in practical operating, overvoltage caused by reignition of the vacuum switching device frequently appears, and it result in damage of the capacitor bank or the switchgear itself. Ensuring the switchgear against reignition and installing a protective device are two main approaches to avoid the phenomenon. In this paper, a study on overvoltage caused by reignition due to capacitor bank switching with the vacuum switching device and its preventive measures are carried out. The main work which has been done and researches are as follows: 1. The producing mechanism of overvoltage and its influence factor are analyzed. It is pointed out that single-phase reignition is the main reason for damage of the switchgear and two-phase reignition is the main reason for damage of the capacitor bank,so overvoltage of single-phase reignition and two-phase reignition are the emphases of prevention. 2. Analysis of the special working condition of the operating switch for capacitor bank is carried out. It indicates that the vacuum switching device is difficult to realize no-reignition under this operation condition, so it is more practical to adopt protection devices. 3. Analyses of protection effect of RC and MOA and their shortages are carried out. It shows that the two methods can only restrain effectively overvoltage caused by single-phase reignition, and they cannot protect the capacitor bank when reignition of two-phase occurs. 4. The operation principle of G-R damping device is analyzed and discussed emphatically.

本文针对真空开关投切电容器组时因重燃而产生的过电压及其防治措施进行了研究，所开展的主要工作和研究结果如下： 1、对过电压的产生机理及其影响因素进行了分析，指出单相重燃是导致开关设备损坏的主要原因，而两相重燃则是导致电容器组损坏的主要原因，因此单相重燃和两相重燃过电压是防护的重点； 2、对电容器组操作开关的特殊运行条件进行了分析，指出在这种运行条件真空开关难于实现不重燃，因此采用保护装置更具有现实意义； 3、对RC与MOA的保护效果和存在的不足进行了分析，指出这两种方法均只能有效抑制单相重燃过电压，而不能在发生两相重燃时保护电容器组； 4、重点对G-R阻尼装置的工作原理进行了分析和讨论，指出该装置接入后线路中将会出现两种频率的高频振荡，而电容器组上的过电压是由这两种振荡共同决定的； 5、根据对上述两种振荡的分析指出存在一个最佳电阻值使得过电压最低，并提出了电容器组电压和最佳电阻值的近似求解方法； 6、使用电气暂态分析软件MATLAB对G-R装置的保护效果进行了仿真计算，证实该装置确实可以有效抑制重燃时的电容器组过电压； 7、根据仿真与近似计算结果的偏差提出了近似计算的修正方法，经过修正后的过电压计算结果与仿真结果吻合较好； 8、对G-R装置中放电装置G与阻尼电阻R的要求进行了分析，指出采用编织电阻和真空间隙可能是最佳选择。

It will also explain how thermal printers produce bar codes that remain legible and scannable for the duration of most patients' hospital stays, helping to prevent errors by ensuring accurate patient information is always available at the point of care.

还解释了热敏打印机如何打印条形码，如何在医院环境下工作来确保病患的安全性。

ScreenY is set to -16, ensuring that even if a large scroll offset is in use it will not leave any gaps.

ScreenY设置为-16，这样可以保证即使滚屏偏移量很大也不会留下空隙。

In view of limitation and one sidedness among former grain research , the macro agriculture base and hierarchy structure of regional grain security have been systematically studied. Furthermore, the grain demand and assuring quantity of grain security of Western China has been probed, and five important ways of ensuring grain production security has been highlighted in this paper.

针对以往粮食研究中&就粮说粮&的片面性和局限性，在系统研究粮食问题的宏观农业基础和区域粮食安全层次结构的基础上，分别探讨了中国西部地区粮食需求趋势和区域粮食安全保障结构，重点分析了解决西部地区粮食安全的五项生产保障途径。

A mixed solutizer (volume ratio of methanol: MTBE: DMC: isopropyl alcohol: cresols= 4:2:1:1:1) was selected and used with lithium isocaprylate in a mass ratio of 85:15 to form a complex antiknock additive ensuring the fully solution of lithium isocaprylate in gasoline.

当混合增溶剂 [V∶V∶V∶V∶V=4∶2∶1∶1∶1]和异辛酸锂的质量分数分别为85%和15%时异辛酸锂可以与汽油互溶。

Real time recording/reproduction information for ensuring real time recording/reproduction is stored in a file control information area, in each real time file, or in a sperate file, and real time recording/reproduction attributes are assigned to the file.

用于保证实时记录/重放的实时记录/重放信息被存储在每一个实时文件或一个单独文件中的一个文件控制信息区，并且实时记录/重放属性被指定给该文件。

All shifts staffed with personnel in charge of ensuring product quality.

所有班次的生产操作，必须指定负责人员，以确保产品质量。

The invention provides a method and a device which are capable of remarkably improving tamber conversion quality and ensuring the similarity of the converted tamber.

本发明提出了一种能够显著改进音色转换的质量，并保证转换的声音相似度的方法和装置。

Then the invention further conducts tamber conversion to the standard tamber which has a certain degree of similarity with the original voice so as to precisely imitate the voice of the speaker, thus ensuring the similarity of the converted voice and meanwhile making the converted voice closer to the original phonetic features.

然后本发明将这种与原始声音具有一定程度相似性的标准语音进一步进行音色转换，以精确模仿原始说话人的声音，从而使得转换后的声音在保证相似度的同时，更加接近原始的语音特征。

Cooling fans are the indispensable parts for ensuring the tranquilization and standing working of electrical motor.

电机的冷却风扇是保证电机稳定、持续工作而不可缺少的部件。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"