in the absence of ...(…の非存在下で)
コーパス
recruitment occurs in the absence of F-actin, but ring formation is delayed.
(動員はFアクチンの非存在下でも起こった)
in the absence and presence of ...(…の非存在下と存在下で)
コーパス
enzyme studies were conducted in the absence and presence of glutathione
(酵素の研究はグルタチオンの非存在下と存在下で行われた)