求翻译：我国现在役长输管线90%以上都埋于地下，穿越地区广、土壤性质千差万别、管道结构形式多种多样、输送介质性质各有不同。随着管道使用年限的增加，许多现役埋地管线已经进入“老龄期”。管线的抗压和抗疲劳能力将会降低，最后导致破裂或泄漏，对人员、环境和财产造成重大损失。是什么意思？

More than 90% of our now existing long-distance pipeline buried underground through a wide area, soil properties vary widely, a variety of forms of pipeline structure, transmission media are different in nature. Pipeline increase in the number of years, the number of active duty of buried pipelines

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Our country the service long loses above pipeline 90% all to bury now in underground, passes through the area broadly, the soil nature infinite variety, the pipeline structural style many and varied, the transportation medium nature has the difference respectively.Along with the pipeline service lif

Now active pipeline in China more than 90% are buried underground, vary widely across the region wide, soil properties, pipe structures have different forms of diverse nature, transmission media. As the pipeline service life increased, many buried pipeline has entered on active duty "ageing". Pipeli

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