China is a large agricultural country and has abundant biomasswastes resources, such as plant straw, grain husk, which can provide us with renewable materials.
我国是一个农业大国，拥有丰富的生物质废弃物资源，如植物秸秆、稻壳麦麸等，可转化为一种新的能源。
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Biochar is a type of charcoal produced by heating crop wastes, wood or other biomass in a simple kiln designed to limit the presence of oxygen.
生物炭是农作物废料、木材或其它生物质在简易窑(为限制氧存量而设计的窑)内经过加热而制成的一种炭。
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Approximately half of the world's population relies upon biomass fuels - such as wood, dung and agricultural wastes - for everyday tasks such as cooking, drying crops and purifying water.