The trachea in some patients is difficult or impossible to intubate under any circumstances.有的病人的气管在任何情况下都是很难、或根本不可能插管的.Is It'safer to Intubate Premature Infants in the Delivery Room?在分娩室内对早产婴儿行气管插管是否更加安全?...
The experi-ence has left him sceptical about efforts at conciliation.这段经历使他对调停行动持怀疑态度。The experience has left him sceptical about efforts at conciliation.这段经历使他对调停行动持怀疑态度。Their attempts at conciliation had failed and bot...
A method for determining the hexagonal polytypes of silicon carbide using the Laue pattern is described.本文提出了用X射线 劳埃法鉴定SiC六方多型体类型的方法.For the materials with high hardness, such as cemented carbide, glass , jadeware, etc.适...