这些鸟很难观察，因为它们生活在山区森林里，所以研究人员在一些鸟的尾巴上安装了微型摄像机，以此作为一种研究它们行为的方法。
The birds are hard to observe, as they live in a region of mountainous forest, so the researchers have attached tiny cameras to the tails of some birds, as one method of investigating their behaviour.
以具有系统管理员权限的用户登录，按照安装一节描述的方法之一安装修订包。
Log on as a user with root authority, and install the fix pack choosing the methods described in the Installation section.
接下来的一屏提示您选择安装方法，如图 4 所示。
The next screen prompts you to choose the installation method, as shown in Figure 4.
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