In this paper, an infrared safety device is developed to fit the for - ging press mechanism. The device has the advantage of quick action, square light screen and breakdown self check.

本文研制设计了适合冲压机械的红外光安全装置，此装置具有动作速度快、矩形光幕、故障异或逻辑自检等优点。

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Fife Trading Standards has urged parents to check the make of their cotbeds and to contact Cosatto for advice on whether a safety device is needed.

BBC: Stratford Cot bed safety notice