It's a bit cumbersome using absolute paths when you only want to jump from one branch of the tree to another nearby. That's why CD allows you to use relative paths.

当您只想从目录树的一个分支跳转到附近的另一个分支时，使用绝对路径会有点麻烦，这就是cd命令允许使用相对路径的原因。

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The paper expounds briefly the absolute speed of run -up rhythm etc , and attempts to improve sportsmen s long jump marks.

本文就跳远的绝对速度，速度利用率和节奏等方面进行简要阐述，以期提高跳远运动员的成绩。

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With using absolute optical interferometer for measuring length of block gauge, it is necessary to solve the problem of phase jump for reflecting of light on its surface.

在用绝对光波干涉法测量量块长度时，必须解决光在量块表面反射时的位相跃变问题。

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