Effects of surfactant on viscosity of cetyl hydroxyethylcellulose ( CHEC ) solution were investigated by rheometer.通过流变仪研究了几种表面活性剂对十六烷基羟乙基纤维素 ( CHEC ) 溶液黏度的影响....
“ 不客气, ” 他说, 嗓音因激动而哽咽了." You're welcome, " he said, his voice choked with emotion.她的声音因为情绪而哽咽,他几乎听不懂她在说什么.Her voice was so choked with emotion he could hardly understand her....
Air that is expelled from the lungs passes through the glottis.空气从肺部输出,首先通过声门.Direct laryngoscopy revealed narrowing of the glottis with diffuse ulcerative necrotic tissue.以直达式喉镜发现声门狭窄与广泛性溃疡坏死组识.Glottis epiglottis plays ...