"The firing starts when sensitive trigger hairs located on the (trap) door are touched," he said.

“当陷阱阀门上的感应毛被碰时，就触发了诱捕行为”，他说：“由于内部受压，门已经处于内向状态。”

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The reflective fire-viewing mirror is to view the fire, it is made to comply with the scientific principle, and user can pull out the fire-viewing mirror under the door to view the firing condition.

采用反射式观火镜观察火焰，科学合理。用户只需从门下方底部拉出观火镜，便可观察到整个火焰的燃烧状况。

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My own view is that, even by his own account of events, Oscar Pistorius displayed the most extreme recklessness in firing blindly into a closed door, without even the most basic appreciation of who or what might lie behind it.

BBC: Oscar Pistorius: Variations on a theme of grief

Redstone is also infamous for keeping a revolving door at Viacom, ousting Viacom chief executive Frank Biondi in 1996 and firing Viacom chief executive Tom Freston a decade later.

FORBES: Billionaire Smackdown: Redstone vs. Murdoch