zhè / zhǒng / tī / dù / huí / bō / jì / shù / kě / yǐ / suō / duǎn / cí / gòng / zhèn / sǎo / miáo / shí / jiān这种梯度回波技术可以缩短磁共振扫描时间。This gradient echo technique can shorten MRI scanning time.