根据耐久性试验中老化试验的条件，估算了一台合格的高压并联电容器在标准和技术条件规定的条件下运行时，其预期的使用寿命。
According to the conditions of ageing test within endurance test, the expected operation life of a high-voltage shunt capacitor which operates under the standard condition is estimated.
相反，使用寿命与预期使用相同的构件可以发挥出最大使用潜力。
In contrast, components whose service life is the same as their expected use are utilized to their maximum potential.
性能测试表明起动性能良好，在机车上的使用寿命预期比原有电池提高一倍左右，且无需维护。
The estimated service life of this battery in diesel locomotive was about twice as long as that of its original battery, and it was maintain-free.
在北欧国家，由于供暖的水质和水处理有很高的标准，整个集中供暖系统的使用寿命都可预期在50年。
On the basis of a high standard on the water quality and water treatment, a service life of 30-50 years is anticipated for the whole central heating system.
在北欧国家，由于供暖的水质和水处理有很高的标准，整个集中供暖系统的使用寿命都可预期在50年。
On the basis of a high standard on the water quality and water treatment, a service life of 30-50 years is anticipated for the whole central heating system.
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