Good knowledge of drawing software, CAD, mechanical drawings etc.

熟悉制图软件、CAD、技术类制图等。

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Our first step is releasing the specifications and mechanical drawings.

第一步是，发布规格说明和机械图纸。

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Able to read correctly electrical lay-out drawings and mechanical drawings.

看得懂电气设计图和机械图。

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Files containing mechanical drawings, case measurements and recommended materials have already been released by the phone maker.

BBC: Nokia backs 3D printing for mobile phone cases

Mr Cassagnes came up with the idea for a mechanical toy that creates erasable drawings by twisting two dials in the late 1950s, while working as an electrical technician.

BBC: Etch A Sketch inventor Andre Cassagnes dies at 86