arrestor

Breather valve and flame arrestor are indispensable safety devices.

可见呼吸阀、阻火器是储罐不要缺少的安全设施.

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So the railroad will buy the spark arrestor.

所以铁路将购买阻火器.

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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.

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