摘要: 第一期船式拖拉机船体行驶阻力的研究····“················································……区箱刚口叱对抽即。耘诚吕切雌已彻“seemann分类研究························……毕培曦徐祥浩蔬菜地化学除草技术的研究·····················……陈友荣刘革杰侯任昭上官永斌水稻杂种一代产量与主要性状间表现型及基因型关联性的研究···············……曹世雄不同光照强度和温度对水稻光合作用和光呼吸的影响···…