根据高压钠灯在不同电压下的照度及寿命特性，推导出路灯半夜灯的最佳供电电压。
Based on the illumination and lifetime characteristics of street lights under different supply voltage, the best voltage supply for high-pressure Sodium lamps used in city street lighting is derived.
通过对刀具使用寿命特性的分析，在实验研究的基础上，推导了基于最佳切削温度守恒定律的刀具最大尺寸使用寿命方程。
On the basis of experiments and the conversation law of optimal cutting temperature, the equation of maxim dimension tool life is derived and the relation parameters of the equation are also given.
他们大肆宣传他们的产品特性以及寿命，但是一觉醒来，就没人再关注这些。
They talk about their product features and their longevity, but at the end of the day, no one cares.
材料之间的结合决定了电池的特性，包括它的能量和功率密度，以及安全性、使用寿命和成本。
The combination of materials determines the characteristics of the battery, including its energy and power density, safety, longevity and cost.
实用主义者，他们偏爱等待被完整特性集，高质量，长市场寿命，良好支持，以及鲁棒的行为支持的成熟产品。
Pragmatists who prefer to wait for mature products backed by full feature sets, high quality, market longevity, good support, and robust behavior.
建立并进行破坏性及非破坏性的材料、零件、产品测试，从而计量其性能、寿命或材料特性。
Sets up and performs destructive and nondestructive tests on materials, parts or products to measure performance, life or material characteristics.
蓄电池的放电特性提供了关于电池容量和寿命的重要信息。
The discharge characteristics of a secondary battery provide important information about the battery's capacity and life.
提出了两者对齿轮传动动态特性中振动、噪音、可靠性、传动效率、寿命等的影响。
The gear dynamic characteristic with vibration, noise, reliability transmission efficiency and used life was effected by gear dynamic and static precision.
“内胆”是太阳能热水器的心脏，其特性影响着产品整体寿命。
"Inner" is the heart of the solar water heater, its characteristics affect the overall life of the product.
并具有结构紧凑，扩展组合简捷，使用寿命长，维护开支少等特性。
And has compact structure, the expansion of portfolio of simple, long life, less maintenance expenditure and so on.
晶粒尺寸对形成寿命、扩展寿命和裂纹长度的分布特性都有影响。
The initiation life, growth life and crack length distributions are affected by the grain size.
薄壁结构的动力特性及动态响应分析是声疲劳分析以及寿命估算的基础。
Analysis of structural dynamic performance and response is the foundation to estimate fatigue life.
分析了材料的真空放气特性对阴极寿命的影响。
The influence of the outgassing of the material in vacuum on the cathode lifetime is analyzed.
热处理是一个控制过程，用来改变材料(如金属和合金)的微观结构来传递它们的特性，例如可延长组件的使用寿命。
Heat treatment is a controlled process used to alter the microstructure of materials such as metals and alloys to impart properties which benefit the working life of a component, for example.
橡胶软管是软管泵的核心部件，其变形特性直接关系到软管泵的性能和使用寿命。
Rubber hose is core parts of hose pumps. The deformation characteristics determine the life of hose pumps.
高频无极放电灯由于没有电极，因而具有结构简单、高显色性、高光效和长寿命等特性，是一新型节能光源。
The electrodeless discharge lamps have the properties of simple structure, good color rendering, high light efficiency and long life. They are new energy saving light sources.
离心泵的汽蚀不仅直接影响到泵本身的工作特性、运行可靠性和使用寿命，而且还影响到其工作系统运行的可靠性和经济性。
Cavitation of centrifugal pumps not only directly affects it's characteristic, work reliability and working life, but also affects its' system reliability and economics.
设备寿命诊断主要研究设备部件在非稳态下的温度及热应力变化规律、金属材料的疲劳特性以及部件的寿命损耗。
Equipment life-span diagnoses mainly research the variation rules of unit part in unsteady temperature and thermal stress, fatigue characteristic of metals and life deterioration of equipments.
针对PA6+60%GF的材料的磨损和腐蚀特性，我们的热流道系统选用了特殊的材料及特殊的浇口结构，以保证系统的使用寿命！
In terms of the PA6 + 60% GF wear and corrosion properties of material, we choose the special materials and special gate structure to prolong system longevity.
半导体激光器(LD)是一种电流注入式电致发光器件，其工作特性和使用寿命主要取决于驱动电流源的性能优劣。
Laser diode (LD) is a current injected device whose characteristic and life are greatly dependent on the performance of LD-used current supply.
具有寿命长，功耗低、噪音小、调速平稳、运行可靠、无干扰等特性，广泛应用在自动化设备中。
Having long life, low power consumption, small noise, stable speed, reliable operation without interference characteristics, They are widely used in automation equipments.
采用无裂纹缺陷试件进行疲劳试验得到试件的疲劳寿命，同时利用考虑了记忆特性的局部应力应变法对试件的疲劳寿命进行定量分析。
The fatigue life is obtained by using specimens without crack and by a special analysis based on local stress-strain method in which remembrance characteristics are considered.
提出齿轮的表面质量对其使用性能和寿命有着极为重要的影响，并详细论述了脉冲电化学机械齿轮光整工艺，及其加工后的齿轮的表面质量特性。
This paper points out that a gear's surface quality has important influence on its employment performance, and pulse-electrochemical mechanical finishing in gear machining is discussed in detail.
动态特性计算和疲劳寿命预估与试验结果相吻合。
Calculated result of dynamic characteristics and estimated result of fatigue life are coincident to the test one.
在使用非指定的充电器给电池充电时，由于参数特性不符，将对电池寿命有很大的影响。
While using the charger not appointed for the battery, as the parameter characteristic is not accorded with the battery, will have great influence to the battery life-span.
预测和实测寿命对比表明，基于短裂纹扩展特性的预测能力有显著改善。
As compared with the experimental life it shows that the predicting ability based on the growth characteristics of short fatigue crack was improved obviously.
此种结构一般采用螺栓连接，其连接处的疲劳特性往往决定了结构的使用寿命。
Most commonly, bolted joints are adopted to connect laminates to other structures, and the fatigue properties of joints affect the service life of jointed structures seriously.
此种结构一般采用螺栓连接，其连接处的疲劳特性往往决定了结构的使用寿命。
Most commonly, bolted joints are adopted to connect laminates to other structures, and the fatigue properties of joints affect the service life of jointed structures seriously.
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