Frame refers to a component of manual wheelchair. The two most common types of frames currently available are rigid frame chairs where the frame remains in one piece and the wheels are released for storage or travel, and the standard Cross-brace frame which enables the frame to fold for transport or storage.
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United Nations Framework Convention on Climate Change
Framed photo (A framed photo is a photograph that has a picture ...)
Theoretical framework (Theoretical framework refers to the process of ...)