請求英文達人，關於電腦方面的英文 - 生活

各位大大　因為專有名詞實在太多　可以幫忙解釋嗎？
Select the object you want to check out of Windchill. The Associated Drawings check box causes Workgroup Manager for AutoCAD to display the Windchill object structure and associated drawings in the subsequent Checkout Preferences dialog box. If the check box appears checked and unavailable, a site configuration option causes a default selection of all the drawings related to the product structure. If you select a Part, both the Part and CAD document are checked out.
Windchill是什麼？其他的？？麻煩幫忙翻一下！
　還有A desktop theme is a predefined set of window elements that help you personalize your computer to give it a distinctive look and feel.
Theme 的中文解釋是什麼呢？　我看的懂英文意思　但是不知道確切的中文名稱！謝謝！！