| 摘要 |
A carabiner has a C-shaped body. At one end of the body a gate is pivotally mounted and is spring loaded to a closed position. A tongue is pivotally mounted on the body and is positioned to keep the gate open against the action of its spring loading. The tongue releases the gate to pivot to its closed position when an element to be engaged by the carabiner is introduced into the body and trips the tongue.
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