...our aquatic resources.我们的水资源The aquatic product production of accipitral pool city comparatives to belong to a miniature production partly.鹰潭市的水产生产相当一部分属于一家一户的小规模生产.Preliminary investigation on the Chihu Lake aquatic ...
从长远的观点看,就降低成本来说,固体助推器更具有竞争能力.There are prospects for reducing solid booster costs to make them financially more competitive.本实用新型涉及一种在医疗静脉注射器上使用的助推器.The utility model relates a booster used a medical vein injector.并对发动机喷...