Throttles dense solutions of paper mill stock for headbox flow control, etc.用于压头箱流体控制的造纸厂原料的稠密流体节流, 等等.Originally, headboxes were open to the atmosphere ( open headbox ) .通常, 开放式头箱与大气 相通.D . three seconds after injection...
Neuroblastomas are also associated with increased urinary levels of dopa, dopamine and their metabolites.成神经细胞瘤患者尿中也出现大量的多巴 、 多巴胺以及它们的代谢物.Objective To study the neurotoxicity of L dopa and its neuroprotective method.目的 研...