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信号雷管

信号雷管

信号雷管

信号雷管

1

It was a few days before the Fourth of July, and a grey , scrawny Italian child was setting torpedoes in a row along the railroad track.

距离七月四日还有几天，于是看见一个满身灰尘、瘦骨嶙峋的意大利小孩在沿着铁路轨道放了一排信号雷管。

2

A small explosive placed on a railroad track that is fired by the weight of the train to sound a warning of an approaching hazard.

信号雷管一种置于铁路轨道上的小型爆炸物，由火车的重量引爆，这样来预警临近的危险

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