基本解释[农业科学]水稻霜霉病英汉例句双语例句Climatic and seedling raising patterns are the key factors for the occurrence and widespread of rice downy mildew.气候条件与育秧方式是水稻霜霉病发病与传播的关键因素。词组短语短语rice seedling downy mildew 稻苗疫病专业释义农业科学水稻霜霉病