他对着手机话筒吼了一通信息。He bellowed information into the mouthpiece of his portable telephone.布莱克把手绢包在话筒上，以使自己的声音听起来模糊不清。Blake held his handkerchief over the mouthpiece to muffle his voice.他对着电话话筒大叫。He shouted into the mouthpiece....
结果: 在5ppm的富锗培养基上培养的GSC中锗的转化率最高 ( 1118% ).RESULTS: GSC contains the highest ( 11.18 % ) germanium in 5 ppm enriched germanium MS cultrue medium.在不改变原工艺流程的基础上提出了富集锗的相关措施.The authors have proposed some measures related to g...