She did not use any safety devices, such as a seat belt or parachute.

她并没有使用任何安全设备，比如安全带或降落伞。

The auto industry added safety devices like seat belts and air bags.

汽车业增加了安全带和安全气囊等安全装置。

Safety devices that do not protect.

安全装置。

More particularly, safety devices which, while protecting against one agent of destruction, attract magnet-like another and worse.

更具体地说，安全装置在抵御一种破坏因素同时，却像磁铁一样吸来了另一种更糟糕破坏因素。

The safety device cuts in automatically.

【cut】安全装置在需要时会自动开启。

Teoh said the findings could be valuable for trucking companies and drivers who are considering whether to get safety devices on their next vehicles.

提欧表示，这一发现对于正在考虑是否要在其以后新车上安装安全装置卡车运输公司和驾驶员来说，十分具有参考价值。

'SmartHalo', which costs $150, also has a built-in safety device that flashes red and sounds a loud alarm if someone tries to steal the bike.

“SmartHalo”售价为150美元，并内置安全装置，如果有人想要窃取自行车，该设备将显示红灯，并发出警报。

(pages 483–485) PART VII: SPECIAL ECONOMIC ISSUES 1. Costly safety devices or policies have often been defended on grounds that " if it saves just one life, it is worth it." What is the problem with that reasoning?

（第 483-485 页） 第七部分：特殊经济问题 1. 昂贵安全装置或政策常常被认为“如果它只能挽救一个生命，那就值得”。这个推理有什么问题呢？