平均使用寿命

The aim of the paper is to improve the reliability of HF generator, which is the key to decide the life of HF electrodeless light. At first, I collect and analyze the relative dates, and statistics fault models.

首先进行了与可靠性相关的数据收集与分析，对故障模式进行统计；然后从电路结构、环境应力及容差三个方面进行可靠性分析，从而为关键的可靠性设计提供了依据；接下来的可靠性设计，从电路设计、热设计、降额使用、筛选四个方面逐一解决了可靠性分析阶段发现的问题；最后，我将改良的发生器批量生产，并从中重新收集了可靠性数据进行计算，事实证明改良后高频无极灯的平均寿命已达到6万小时。

The result indicates inapplicability of manganese steel to making liner.

中国铝业中州分公司管磨机中的锰钢衬板使用寿命平均不足4000h，每年消耗大量的金属锰钢材料，致使成本上升、设备运转率下降。

Property is the same, from the perspective of living, housing is its length of life and land, the average life of a new house for 50 years, the land of its serviceable life is 70 years.

知识产权是相同的，从生活的角度看，住房是其长度的生命和土地，平均寿命的新房子50年来，土地的使用年限是70岁。

In this paper, we use a stochastic approximation to calculate and approximate to the true values of mean lifetimes which are the important components of a masked system.

本论文使用随机近似方法去逼近遮蔽系统中重要元件平均寿命的真实值。

At first, I collect and analyze the relative dates, and statistics fault models. Then I finish the analysis from three aspects, instruction of circuit, stress of surrounding, and tolerance, thus providing basis of design. The following designs are in progress from four aspects, which are circuit design, thermal design, derating using and screening. At last, I make the update generator in batch process, and collect and analyze reliability dates again. I proved that the life of the improved HF electrodless light is over to 60,000 hours.

首先进行了与可靠性相关的数据收集与分析，对故障模式进行统计；然后从电路结构、环境应力及容差三个方面进行可靠性分析，从而为关键的可靠性设计提供了依据；接下来的可靠性设计，从电路设计、热设计、降额使用、筛选四个方面逐一解决了可靠性分析阶段发现的问题；最后，我将改良的发生器批量生产，并从中重新收集了可靠性数据进行计算，事实证明改良后高频无极灯的平均寿命已达到6万小时。

As the company's main product - both rotary joint From design to production have continued to innovation, many models adopted a new balance of mechanical seals designed to seal the end than the pressure to maintain the minimum and unchanged, optimization of the friction material composition and the use of advanced NC Processing Center, sealing performance, life has a great degree of improved technology and products so that the water quality in the average domestic leading position.

作为本公司的主导产品--旋转接头无论从设计到制作都不断努力创新，许多型号采用了新的平衡机械密封设计，对密封端面产生的比压值保持最底限度且不变；优化了摩擦副材料的组合，并采用先进的数控中心加工，密封性能，使用寿命都有了很大程度的提高，使产品的技术和质量水平均处于国内领先地位。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。