So, the bridge assessment base on the prediction of bridge service time has the vital significance.

因此, 基于结构寿命预测的桥梁评估就有着重要的意义.

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A maintenance policy matching with to armor chariots service time is presented in this paper.

该文通过计算机仿真,提出了与装甲战车服役期相匹配的一种维修策略.

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The paper introduces the cause of forging die breakdown and the measure of extending service time.

介绍了锻模的损坏原因、损坏形式以及延长锻模使用寿命的措施.

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This material is low cost, easy to shape and has long service time.

这种新材料成本低, 成型工艺简便,使用寿命长.

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