Legumes are an excellent source of protein.豆类富含蛋白质。Molybdenum deficiency is found when legumes are grown on acid soils.在酸性土壤上种植豆科作物时常发现缺钼.These bacteria break down nitrogen from the air into a form that legumes can use.这...
Molybdenum deficiency is found when legumes are grown on acid soils.在酸性土壤上种植豆科作物时常发现缺钼.The colonization of rhizobia on the roots of legumes and nonlegumes has been well documented.豆科和非豆科植物根上瘤菌的群集现象曾被很好地证实过.Legumes ( fami...
Liu Yanping , a post - doctorial, lecturing at GDPZ on Sep . 25, 2007.2007年9月25日, 刘彦平博士后来我院讲学.I prefer questioning my pupils to lecturing them.我喜欢少讲课, 多提问我的学生。Laski spent a goodly part of his lecturing life in American u...
为了提高控制水平, 在轧管设备中采用了RMC轧机控制器.For rising control level, RMC is used in rolling tube equipment.本文介绍了轧管机上辊轮的失效分析过程.This paper introduced the procedure of failure analysis for rolling wheels mounted on pipe rolling machines.研...