PE, HDPE 产品描述 M200050 is a High Density Polyethylene grade with narrow molecular weight distribution suitable for injection molding applications. It has been designed to give good flow properties, low warp age with good dimensional stability and high gloss. ...
摘要: 作者采用美国M91OrthoPearlDiver病历库数据,收集了65岁以上髋部骨折患者资料,分析10年内对侧髋部骨折的发生率和时间.总共104311例初次发生髋部骨折,10年内发生对侧髋部骨折7186例,其中68.4%患者发生在初次骨折后2年内.10年内对侧髋部骨折发生率为12.9%.关键词:...
2023年6月24日,是我国激光与光电测试仪器的开创者,测试计量技术及仪器专家,中国工程院院士,天津大学教授叶声华的寿辰.在他的寿宴上,执教几十年来培育的莘莘学子自发地从天南地北赶来,为这位鲐背老人贺寿,由衷地祝福老人家身体健康,福乐绵长.满头银发的叶声华已90岁高龄,精神矍铄,双目灼灼,几乎能记起与每一位学生...
摘要: PROBLEM TO BE SOLVED: To provide an electromagnetic actuator that enables transmission of an output, from the middle portion and that hardly causes shaft deflection.收藏 引用 批量引用 报错 分享 文库来源 其他来源 求助全文 ELECTROMAGNETIC ACTUATOR 优质文献 ...
摘要: PROBLEM TO BE SOLVED: To provide a picture frame facilitating putting in and taking out a sheet-shaped displayed object stably, readily transported or handled, having a reduced load on an installation part, and readily produced.收藏 引用 批量引用 报错 分享 ...
An on-line squeeze tester for glass containers, having a fast cycle or response time. A force applying shoe is carried by a pivoted lever or bell crank. A pneumatic cushion acts on an arm of the bell crank to bias the shoe toward a drive wheel which rolls a single container across the...
This fact file web feature on poliomyelitis (polio) combines 10 facts with photographs to profile the topic. WHO | 10 facts on polio eradication WH Organization 被引量: 0发表: 2014年 Healthy foods from Mother Earth : fact file WHO | 10 facts on polio eradication Vorster,Estwe 被引量: 0...