Salamanders once were thought to be capable of living in fire. 火蜥蜴曾被认为能生活于火中。
In the event a cylinder is exposed to fire or other sources of excess heat, the fusible plug is designed to melt and release the cylinder contents. 在钢瓶暴露于火或其它的过热源的情况下，易熔塞熔化，钢瓶释放出内容物。
