focus onvt.集中在focusn.焦点；焦距；中心v.（使）集中；聚集focus-to-film distance焦点到底片距离focused ultrasound therapy聚焦超声治疗focusing on the key points突出重点Focused Ultrasound Surgery聚焦超声外科focus of natural infection自然疫源地Focus your mind in balance注意力集中在平衡上focusing on judicial power司法中心主义focusing quadrupole magnet聚焦四极磁铁Focus on trade and industry主要针对商业和工业focus grill type color tube聚焦栅型彩色显象管