manual operation

基本解释

Because this is a manual operation, only a small share of bags are examined this way.
因爲這種操作是手動的，所以僅一小部分行李可以通過這種方式檢測。
How did you approach the porting process? Did you use a tool or was it a manual operation?
你是如何移植的，使用工具還是手工完成？
One is the time-consuming and error-prone tasks associated with manual operation in a huge infrastructure like UCM.
一個是在巨大的類似UCM這樣的基礎架搆中手工操作時，産生的耗時和容易出錯的問題。

Because this is a manual operation, only a small share of bags are examined this way.
ECONOMIST: Airport screening technology
The German civil aviation ministry, for example, has demanded to inspect aircraft, as well as the company's operation manual and backgrounders on its engineers and pilots.
FORBES: Lord of the Skies
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