stretch up伸展stretchv.伸展；延伸；张开；夸大n.伸展；张开；弹性；一段时间；<俚>刑期adj.可伸缩的stretched out his hand.伸出他的手stretching of attenuation变薄引伸stretching slenderization拉伸细化stretching force constant[化] 键力常数stretch one's imaginationstretching transformation伸缩变换stretch--wrap bending张臂式拉弯Stretch tires anyone?stretch-breaking method拉断法工艺stretching drive mechanism伸缩传动机构