noun, noun or participle which takes 'suru'
take-off; lift-off; blast-off
Technical term for the moment an aircraft, spacecraft, rocket, or helicopter leaves the ground. Used in aerospace and aviation contexts.
ロケットの離昇は予定通り行われた。
The rocket's lift-off proceeded as scheduled.
ヘリコプターが離昇する瞬間を撮影
I photographed the moment the helicopter took off.