建筑行业用于防火卷帘门、防火门.Used for fireproof roll curtains and fire doors in the building industry.通往楼梯的防火门本中心已安装警铃.All doors of the Centre's exits stairways are alarmed.公路隧道根据防灾和营运时需要,在人行横通道内都有必要设置防火门.Fire Door is necessary ...
通过薄层色谱试验表明,茜草藤的正丁醇萃取液在硅胶板上可分离出清晰的7个斑点.Conclusion 7 spots were clearly distinguishable on the TLC plate.目的为了安全、确的使用茜草藤药材.Object A pharmacognostic study on Rabia cordif olia L.目的: 探讨茜草及茜草炭止血作用机制.Objective : To explore the ...