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22. the accuracy of estimates of bulk tonnage is further subject to considerable uncertainty about the physical properties of the sulphide mounds and chimneys.
22. 估算总吨位的精确性还受制于对硫化物丘体和烟囱体的物理性质不甚了解(hannington等1998年)。
318. scientists have recently discovered a field of hydrothermal vents with "chimneys " of carbonate and silica, potentially a new source of marine minerals.
318. 科学家最近发现一处地方,有许多有碳酸盐和硅石 "矿柱 "的热液喷出口,有可能成为海洋矿物的新来源。
some of its ecosystems, such as the mangrove swamps, coral reefs and marine pasturelands in the coastal zone, or the hydrothermal chimneys and cold seeps in the marine zone, are extremely rich biologically.
在沿海区的生态系统有例如丛林、珊瑚礁和海牧草,海洋区有热液火山管和冷泉流体,其中生物种很丰富。
(b) regularly review and update the boiler systems and the fuel stations at camp faouar in order to prevent contamination of the soil or the air (smoke through chimneys);
(b))定期审查和改进faouar营的锅炉系统以防止土壤或空气(经烟囱排出的烟雾)受到沾染;