marsh-gas n.沼氣；甲烷marsh-buggy [地球科學(xué)]沼澤車marsh trefoil marsh road marsh plants marsh plant marsh ore [礦物] 沼鐵礦marsh marigold marsh mallow root 藥用蜀葵根marsh mallow chocolate [經(jīng)濟(jì)學(xué)]椰絲彈性巧克力marsh mallow 藥用蜀葵；草芙蓉marsh land economy [經(jīng)濟(jì)學(xué)]洼地經(jīng)濟(jì)marsh land 沼澤地marsh horsetail marsh hen marsh hawk marsh harrier marsh gas power generation 沼氣發(fā)電marsh gas 甲烷，[能源] 沼氣marsh elder