casing
- n. 套；盒；（香肠的）肠衣；包装
- v. 把…装入箱内（case的ing形式）
英英释意
- 1. the housing or outer covering of something;
- "the clock has a walnut case"
- 2. the outermost covering of a pneumatic tire
- 3. the enclosing frame around a door or window opening;
- "the casings had rotted away and had to be replaced"