Drawing back my free hand, I struck the bear as hard as I could for five to six times.

我缩回空着的那只手，使劲地打了那只熊五六下。

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This simulates drawing or painting on a real canvas, with the comforts of digital painting: saving, zooming and smudge-free hand positioning.

这设备用比如保存、缩放和弄不脏的画布等数字图形软件的方便特性来模拟在真实的画布上作画的工作。

youdao

This paper studied on free curved surface reconstruction of hand-drawing with reverse technology and "point-surface" CAD model reconstruction.

采用逆向技术路线，通过“点-面”的CAD模型重构过程对不能或不便用CAD功能来表达的手绘图案自由曲面重构进行了研究。

youdao

She made each hand as an example to students while she was teaching a class on drawing using free-motion embroidery.

VOA: special.2009.11.04