If something is detachable, you can take it off and, usually, put it back later — a hood, a strap, a cable, a keyboard. Shops and manuals love this word. It is a little more precise than “removable”: detachable often means it was designed to come apart and go together again. Though actually, people also stretch it to anything you can pull off, even if putting it back is awkward. You may also see detachable used as a noun for the part itself, but the everyday use is the adjective.

可拆卸的、可拆式的（商品說明很常寫「可拆式」）