"A tank is enough to get you around the region for the day, but you have to plan ahead," Martin Risberg, a county engineer, said as he filled a biogas Volvo.

“一个油箱就足够让你在这一地区转上一天，但你必须提前计划。”该县工程师马丁·里斯伯格一边给一辆沼气沃尔沃加满油，一边说。

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The biological purification tank combined of artificial wetland technique and the bio-contact oxidation method was applied for malodorous river water in central urban region of Shanghai City.

将人工湿地技术与生物接触氧化法相组合的生物净化槽应用于上海市中心城区黑臭河水净化。

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An analysis is made on the influence of low temperature environment on the property of natural gas spherical tank used in the frigid region.

分析了寒冷地区的低温环境对天然气压力球罐性能的影响。

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