Manual operation; the mode or action of operating a machine or device by hand (as opposed to automatic).
このカメラは手動と自動の両方のモードがある。
This camera has both manual and automatic modes.
エレベーターが故障したのでドアは手動で開けた。
The elevator broke down, so we opened the door manually.
古い車は窓が手動で上げ下げするタイプだ。
Old cars have windows that are raised and lowered manually.