Advantage: frame can open, make replacing hammer head, back plate and lining board work easier.

优势：机架可以开启，使得更换锤头、反击板及衬板的工作更加简便易行。

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The frame photograph of explosive samples under drop hammer test have a furcate structure, in which the fractal dimension of the explosive is related to its impact sensitivity.

炸药样品在落锤撞击下，其分幅图像具有分形结构，同时，它的分形维数与炸药感度有关。

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A hammer frame board is changed into a single layer prismatic shape or an I shape to save steels of the rotor part of the crusher 30%, and thus the cost is lowered.

将锤架板改为单层棱形或工字形，使粉碎机转子部分节省钢材30%，降低了成本。

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In an outdoor metal shop, Wadongo and volunteers hammer scrap metal for the frame of the lantern.

CNN: 'Saving lives' with solar-powered lights

The jury was told Mr Crompton shoved his wife against the door frame, attempted to strangle her, and then hit her with the hammer.

BBC: Angela Crompton