Its extra heavy duty bearings are designed to maximize its operational life.

其额外的重型轴承的设计最大限度地发挥它的运行寿命。

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The Shuttle was developed in the late sixties. It's operational life can take it through 2025.

这艘太空梭是六零年代晚期制造的，使用寿命可以维持到西元2025年。

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Some factors which affect sizing of damping resistor, operational life, and reliability are also discussed.

分析了影响阻尼电阻大小及使用寿命、运行可靠性的因素。

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Hylas 1 is a communications satellite, launched into orbit in November last year, which is now being coaxed slowly into full operational life.

BBC: For economic inspiration, look to space

They are designed to have an extended operational life and would only need to be refueled a few times during its projected 60-year lifespan.

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"The project will create up to 1, 000 local jobs during the four-year construction phase and 100 local permanent jobs for the 20-year operational life of the project, " he said.

BBC: England