The types and homogenizing principles of blending silos were described.介绍了粉体混料仓的型式及掺混原理.Water - cool homogenizing airproof structure and conquers common airproof leaking problem.水冷式均质密封结构,克服了普通密封渗透的难题.The results of FT -...
心脏有瓣膜控制血液流进流出.The heart has valves to let blood flow in and out of it.二尖瓣狭窄的病变是在心肌而不是在瓣膜.The abnormality mitral stenosis was in myocardium, not in the valve.他们是那些最不适于作瓣膜切开术的患者.They are patients in whom the valvulotomy wa...