90. There are already robot systems that can perform some kinds of brain and bone surgery with submillimeter accuracy--far greater precision than highly skilled physicians can achieve with their handsaone
[参考译文] 现在已有一些机器人系统能够进行精确到毫米以下的脑部和骨骼手术——这要比极具技巧的医生单单用手精确得多。