diff差速器
difformitas变态
difficulity难点
diffusivityn.扩散性;扩散系数
diffusivelyadv.扩散地;散布性地;散漫地
Difficuhies难点
diff-serv区分服务
diffusibity弥散性
diffractiveadj.衍射的,绕射的
diffent GPS不同GPS
diff diag.differential diagnosis 鉴别诊断