来自 百度文库 喜欢 0 阅读量: 21 专利类型: 外观设计 申请(专利)号: CN202030383531.X 申请日期: 20200715 公开/公告号: CN306451339S 公开/公告日期: 20210409 申请(专利权)人: 成都极米科技股份有限公司 发明人: 顾永忠 国省代号: CN510107 ...
对6例风湿性心脏病并发心房颤动(AF)患者行心脏瓣膜置换加改良迷宫Ⅲ射频消融手术治疗。结果出院时心功能均提高≥1级,5例为窦性心律,1例术后2个月转为窦性心律;术后并... 罗克勤,曹建军,况成明 - 《护理学杂志:外科版》 被引量: 4发表: 2009年 ...
摘要: 关键词:苯佐卡因;合成方法;图解苯佐卡因(benzocaine)是一种白色针状晶体,化学名为对氨基苯甲酸乙酯,分子式为C9H11NO2,分子质量为165,熔点为89～91℃,CAS号是94-09-7,微溶于水,略溶于脂肪油,易溶于乙醇,氯仿,乙醚等有机溶剂.苯佐卡因是一种非水溶性局部麻醉药,具有止痛,止痒的作用,还有许多优良...
THIS BUFFER TANK 16, INTENDED FOR A REFRIGERATION SYSTEM COMPRISING COMPRESSORS 1, 2, A CONDENSER 10 AND EVAPORATORS 26 TO 29, SHAPES A CHAMBER 17 OF REFRIGERANT LIQUID. A DIRECT FLOW PIPE 50, THROUGH THIS CHAMBER, HAS AN INPUT 51 TO RECEIVE THE REFRIGERANT LIQUID FROM THE CONDENSER AND ...
作者: 鲁建 摘要: 前人运用智慧和创造力建造了一个又一个豪华的城市.沧海桑田,远古的城市有的尘封于地下,难见天日;有的化为废墟,与枯草乱石结伴.残垣断壁,空对风雨,千年的繁华隐没于时光之中,空留后人嗟叹不已.从欧洲的克诺索城和庞贝城,非洲的泰贝特,到中东的巴比伦,亚洲的吴哥窟,还有美洲的马丘比丘……这...
PURPOSE:To prevent such an accident as a hand is caught into the curved part of a guide rail by making an angle formed between the rear edge of a slider and the tangential line of the curved part of the guide rail nearly a right angle when the slider of a passive seat belt is positi...
Bacillus brevis ATCC 9999, which produces gramicidin S, was found to be unable to ferment various carbohydrates such as glucose, galactose, mannose, lactose, maltose, sucrose, and mannitol. This defect in carbohydrate utilization was attributed to the lack of the transport system(s) for various ...