由于具有头部跟踪可用，需要增加放置选项：比如，UI可以放置到用户的一侧，或在正常视线之上。

And with head tracking available, placement options are increased: the UI can be placed to the user's side, or above the normal line of sight, for instance.

youdao

我们重新命名了每个组合框小部件，以便在源代码中能够更好地区分它们，同时在每个组合框旁边放置一个标签，并使用标签文本对每个选项进行了说明。

We renamed each combo widget to make them easier to distinguish in our source code, and placed a label next to each one with a text word for each option.

youdao

还有相对于窗口左下角放置窗口的选项。

There are also options for placing the window relative to the top left corner of the window.

youdao