One of a series of small ridges or grooves on the surface or edge of a metal object, such as a thumbscrew, to aid in gripping.

滚花：金属物体表面或边缘上的一系列小峰或凹槽，如指旋螺钉，使更容易握紧。

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He perched himself on the table, his hands gripping the edge of IT.

他坐在桌子上，两手抓住桌子的边缘。

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But for a soft object like a sponge, the neural network realized it would be easier to place one gripping finger in the middle and one around the edge, and then squeeze.

但对于柔软物品(如海绵)而言，神经网络意识到将一根手指放在中间、另一根放在边缘会更轻松一些。

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At the 1.2-mile point, Fridjon stands at the edge of a cave-like crevasse, gripping each hiker in turn as they peer into the pitch-black hole.

BBC: The perfect trip: The Canadian Rockies

Gripping the inner tube under his arm, he steps over the edge and half slides half stumbles down, feeling the warm sandy earth spilling over the tops of his feet.

NEWYORKER: Getting Closer

Gripping the ice with his sharp claws, the polar bear leaned over the edge of the ice, sniffing the air and taking in the foreign scent of the 50 sweaty, sunburnt tourists, expedition leaders and crew.

BBC: Life in the fragile, frozen Arctic