生物气体 shēngwùqìtǐ biogas Definitions Defs Origin Strokes Stroke Words Sentences Sents 生物气体 生物氣體 shēngwùqìtǐ biogas gas produced by the breakdown of organic matter in the absence of oxygen
生物气体 生物氣體 shēngwùqìtǐ biogas gas produced by the breakdown of organic matter in the absence of oxygen
