manual sort的意思|示意

The latest post office machines can sort letters at 30,000 items an hour, which is much faster than manual sorting.

邮局的最新机器每小时可以分拣3万份邮件，大大快于手工分拣。

There's no mission statement here, no listing of goals or procedures, no operations manual. Just the sort of knowledge and way of thinking that's been handed down through generations.

这里没有任务声明，没有目标或程序的罗列，没有操作规范，只有几代人传下来的常识和思考方式。