1、A hacker can easily associate an operationally significant IP address to a false MAC address.
一個黑客可以只做簡單的操作就將一個重要的IP地址和一個錯誤的MAC地址綁定。

2、The device had been used operationally some months previously.
該設備幾個月之前曾投入運行。

3、Unfortunately, this technique is operationally expensive and does not scale.
不幸的是，這項技術(shù)操作費事且不可劃分。

4、At the same time, hotels must also be profitable and operationally efficient.
與此同時，酒店也必須帶來盈利與營運效益。

5、An arbitrary key is one column and is almost always smaller than an operationally derived key.
任意鍵是一列，通常比操作派生的鍵要小。