1、

In recent years, the level and capacity of power transformer improve continuously, with the increase in domestic demand for electricity and the grid size. However, at the same time transformer failure rate and repair time are also increasing.

近些年来,随着国内电力需求和电网规模的扩大,电力变压器等级和容量不断提高,变压器故障率和修复时间也随之不断增大。

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2、

Results: The passing rate for 31 types of mosquito-repellent incense in 96. 77%, the failure rate is 3. 23%.

结果:31种蚊香灭蚊效果合格率达96.77%,不合格率为3.23%。

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3、

Aimed at the failure rate of transmission line, the dangerous influence degree of transmission line on telecommunication line and its minimum value are determined by probabilistic method.

针对送电线路故障率,用概率分析的方法研究了送电线路对电信线路造成损害的故障率以及这一故障率的最小值。

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4、

ESP high comprehensive failure rate, however, brought heavy loss to oil field.

然而,潜油电泵机组的综合故障率较高,给油田造成重大损失。

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5、

By accelerated life test and point estimate method the basic failure rate λ RT and λ C are obtained.

采用加速寿命试验和点估计法获得了膜电阻的基本失效率λRT和布线与工艺基本失效率λC;

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6、

There were higher failure rate, large maintenance and poor char-acteristics of speed governing due to using slip speed governing of motors for feed-ers of coal for boilers.

锅炉给粉机电机原采用滑差调速,存在故障率高、维修量大且调速性能差等问题。

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7、

Use life is calculated with failure rate, and the test cycle is determined.

由故障率推算其可靠寿命,确定分段检测周期。

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8、

The primary drug supervision departments at this stage in the understanding of the pharmaceutical market in the first test failure rate by a higher species, the manufacturers and test failed projects and other information.

各基层药品监督部门可以在第一时间了解现阶段药品市场中通过检验不合格率较高的品种、厂家和检验不合格项目等信息。

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9、

In this paper, the empirical Bayes estimator of reliability under type I life test is discussed Approximate interval estimation and EB estimator of failure rate λ is given.

讨论定时截尾试验下可靠性的经验Bayes估计,给出了失效率λ的EB估计和近似区间估计。

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10、

A Mixture Model With Bathtub Shaped Failure Rate

具有浴盆形失效率的一种混合分布模型

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11、

The relations between reliability, failure rate, MTBF and failure threshold are analyzed by this method.

基于该方法,分析了某高可靠长寿命航天机电产品的可靠性、失效率及平均故障时间与失效阈值的关系。

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12、

A reliability analysis is made on the mixed data exponentially distributed from life test under constant accelerating stress. The analysis results in the estimates of failure rate and average life under usual constant stress.

在恒加应力寿命试验下,对指数分布的混合数据提出一种可靠性分析方法,获得在正常应力下的失效率以及平均寿命估计。

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13、

On the basis of the afore-said constant failure rate, a reliability test, using constant time or constant number tail cutting scheme, is recommended.

在恒定失效率的假设下,推荐采用定时或定数截尾试验方案在现场进行电机的可靠性试验。

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14、

The electromotor is the hard core of the antenna tilting mechanism circuit of the equipment. According to the basic failure rate model and working failure rate model of the national military standards, the electromotor working reliabilities are analyzed under different working conditions and environments.

某装备天线翻倒机构电路的核心部件是电动机,根据国军标中电动机的基本故障率和工作故障率模型,分析了在不同条件和工作环境下电动机的工作可靠性,并对结果做了比较和分析。

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15、

Finally obtain the mean time between failures ( MTBF), mean time of repair failures ( MTTF), inherent availability ( A) as well as reliability index such as reliability and failure rate function according to the distribution model.

最后根据分布模型计算得到该加工中心的故障间隔时间(MTBF)、平均维修时间(MTTF)、固有可用度A以及可靠度和失效率函数等可靠性指标。

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16、

The individual parameters for evaluating overhauled motor vehicles are: mean time to first failure ( MTTFF), mean time between failures ( MTBF), equivalent failure rate and unit repairing cost, etc.

大修汽车可靠性单项指标的确定:平均首次故障里程、平均故障间隔里程、当量故障率、单位维修费用;

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17、

At the same time using a motor to complete three movements, strictly control the failure rate;

同时采用一个电机完成三个动作,严格控制故障率;

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18、

Results Sentinel node was not identified at the time of operation in 11 patients, giving a failure rate of 13.1%.

结果11例患者术中未检出前哨淋巴结,失败率13.1%。

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19、

The operation, the use, the maintenance, the service, the difficulty is bigger, the failure rate and repair a second time rate is higher, carried on the information management into one kind of necessity to it.

操作、使用、保养、维修,难度较大,故障率和返修率较高,对其进行信息化管理成为了一种必然。

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20、

The statistical analysis of Gompertz distribution base on tampered failure rate model under progressive stress accelerated life testing

Gompertz分布序进应力加速寿命试验损伤失效率模型下的统计分析

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