spark arrestor meaning in English

火花避雷器

So the railroad will buy the spark arrestor
所以铁路将购买阻火器。
Railway transport equipment . spark arrestor plates for braked wagon wheels
铁路运输设备.车厢制动轮的防火花档板
The railroad will realize that it can save this $ 100 cost by investing $ 50 in a spark arrestor
铁路将意识到，它可以通过投资50美元购买阻火器来省下这100美元。
The farmer will realize that he can save this $ 100 cost by entering into a contract whereby he pays $ 50 ( plus some extra enducement , say $ 51 total ) to the railroad in exchange for the railroad installing the spark arrestor
农民将会意识到，他可以支付50美元（加上某些额外的费用，假定共计51美元）给铁路，作为交换，铁路将安装50美元的阻火器。