轴承所需的实际寿命当然与应用的性质有关。
The life actually required for bearings naturally varies according to the nature of the application .
一般的线性损伤累积理论忽略了高频率低疲劳应力所引起的构件疲劳损伤，致使预测结果与实际寿命相差很大。
But the common linear fatigue damage cumulative rule neglects the fatigue damage which is brought by the high frequency and low stress.
英国养犬俱乐部(Kennel Club)的犬类遗传顾问杰夫·桑普森(Jeff Sampson)指出，狗的实际寿命数据也在不断变化。
The true Numbers are moving targets, adds Jeff Sampson, canine-genetics consultant to the Kennel Club in the U.K..
1820年之后实际工资迅速上涨。 1800年伦敦仅有23岁的人均寿命此后也有增长。
Real wages rose rapidly after 1820; life expectancy, just 23 years for Londoners in 1800, also improved.
其实，要是你分分钟都乘坐商业客机，可能寿命实际会更高，得知这个，你也许会大吃一惊。
In fact, you may be surprised to learn that your probable lifespan would actually be higher if you lived every minute of it on a commercial airliner.
在实际环境里，iPad电池寿命超过了10个小时，因此苹果似乎已经在工程设计上掌握了某些新东西，令移动设备的节电表现更佳。
The iPad gets over 10 hours of battery life in the real world, so it looks like Apple has learned a few things about engineering better power savings in mobile devices.
实际上灯泡寿命和亮度的改进全部来自灯泡制造商自己的选择。
Practically all the improvements in terms of life and brightness since then have come from the bulb-makers themselves.
证据表明增强寿命的积极观点实际上比那些过度肥胖而降低寿命的证据更有力。
The evidence linking an upbeat outlook to increased longevity is actually stronger than the evidence linking obesity to reduced longevity.
实际上，在一个对220个国家的人均寿命的调查中，美国人78岁的人均寿命仅排名第50。
In fact, we rate 50th out of more than 220 countries with an average age of 78.
它析气量极低，经久耐用，寿命长达15年，12年以上的实际运行经验确保了它的高度可靠性。
It analyse volume is extremely low, durable, life for 15 years, 12 years experience in the actual operation to ensure its high reliability.
在明确了实际触点对继电器寿命的重要性后，大量的工作就是寻找和选择一种“好”触点材料。
Given the importance of the actual contact to the life of the relay, much effort has gone into finding and choosing "good" contact materials.
采用焊点疲劳寿命预估方法，通过有限元分析并结合应力计算，即可计算出实际载荷工况下的焊点疲劳损伤。
With the welding spot fatigue lifetime pre-estimation method, by combination of the finite element analysis and stress calculation, the welding spot fatigue damage under actual load can be calculated.
可用于多种规格型式的运动密封，进行密封性能和使用寿命实际模拟试验。
Seal performance tests and operation life simulation of various types of reciprocating seals can be done on this device.
实际上，把文档放在wiki上，它们的寿命就会长得多。
对提高窑炉设计及施工精度，延长使用寿命有较高的理论和实际价值。
It is of great practical value to improve kiln design and construction precision, prolong service life.
该方法所需机时较少，可用于工程实际构件的疲劳寿命预估及抗疲劳优化设计。
This method requires not much of CPU time and can be applied to engineering practice in estimating lives and designing against fatigue.
对焊接结构疲劳寿命的预测有重要理论意义和实际应用价值。
For weld structure fatigue life forecasting, it has important theory meanings and practical applying value.
实际上，他说，罗马结构依赖于高强度的拱，寿命远长于现代的依靠钢强化的混凝土建筑，而钢结构最终被腐蚀。
In fact, he said, Roman structures that rely on the arch for strength can far outlast modern concrete buildings that rely on steel reinforcement bars, which eventually corrode.
因此化学钢化能提高太阳能电池长期工作的可靠性，对提高太阳能电池的使用效率及寿命具有实际意义。
Consequently, ion exchange strengthened cover glass can increase the reliability of solar cell, which can improve service efficiency and prolong the life of solar cell.
从原料、工艺操作等方面对影响催化剂活性原因进行分析，总结出可延长MTBE催化剂使用寿命的方法，实际应用效果良好。
The raw material and process operation which affects the catalytic activity are analyzed and a method to enlarge the life circle of MTBE catalyst is conclude, which proves to be effective in practice.
本文重点从理论上分析了如何延长大功率管的寿命，以及怎样才能在实际电路中实施这一方案。
How to prolong the service life of high power vacuum tube and how to implement the proposed plan in practical circuits is discussed theoretically in this paper.
在油气资产的使用寿命内，油气资产弃置义务采用实际利率法确定各期间应承担的利息费用。
Interest expenses from the assets retirement obligations for each period are recognised with the effective interest method during the useful lives of the related oil and gas properties.
实际运行结果表明，该系统具有体积小、检测能力强和寿命长等优点。
Experimental results indicate that this system has some advantages such as small size, reliable detection ability and long service time etc.
实际应用表明，模具使用寿命从2000件提高到7000件左右。
Practical application verifies that the service life of dies could be increased from 2000 to 7000.
文章给出了一种可按不同的胶带预期寿命来确定实际工况下单根带许用功率的方法。
A new method is proposed for determining the nominal horsepower of a single belt subject to operational loading according to its expected service life under practical working conditions.
并且在钢板的剪切机刀片上作了实际考核，寿命大大提高。
The practical investigation on the razor blade of scissors of steel plate was conducted and it's life was improved notablely.
并且在钢板的剪切机刀片上作了实际考核，寿命大大提高。
The practical investigation on the razor blade of scissors of steel plate was conducted and it's life was improved notablely.
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