The oil industry has also developed remotely-operated vehicles to make trenches for seabed pipelines, which can be adapted for cutting ore, even though it may lie much deeper, at, say, 1.5km down.
并且,石油工业已经开发出可用于海底管道挖槽的遥控船,可以经过改造用来切割矿石,即使这些矿石在1.5千米以下也没问题。
Even before the Great Depression, downturns were typically much deeper and longer than they are today (see right-hand chart).
其实,早在大萧条之前,经济情况远比今天严重得多,持续时间也更长(见上图)。
With tools like Wireshark, you can go even deeper and get more detailed information on a much wider range of protocols and content.
通过使用诸如Wireshark的工具,您可以更一地步地了解更大范围的协议和内容的更多详细信息。
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