The value of EI_PAD will change in the future if currently unused bytes are given meanings.

假如当前未被使用的字节将来被赋予了新的涵义，EI_PAD的值也将会改变。

youdao

The first (currently unused but convenient to have around) is a debugging flag, specified by the -d option.

第一个选项（当前未用，为功能扩展保留）是一个调试标志，用选项 -d 表示。

youdao

The first list defines the inodes that are currently in use; the second list defines the inodes that are unused.

第一个列表定义当前使用的 inode；第二个列表定义未使用的 inode。

youdao

There's a full-size SD card reader and a standard 3.5mm headphone jack (with mic support) on the left, plus the power input, HDMI output, USB 2.0 port, USB 3.0 connector and SIM slot (currently unused) in back.

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And by consolidating data plans, you can take advantage of any data you currently have unused each month by efficiently sharing it across devices.

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And these backbones have so much bandwidth that a lot of it is currently "dark, " or unused.

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