kē / yán / rén / yuán / yòng / jī / xiè / bì / zài / xiá / xiǎo / de / kōng / jiān / lǐ / wán / chéng / le / wéi / xiū科研人员用机械臂在狭小的空间里完成了维修。Researchers used a robotic arm to complete repairs in a confined space.