所有校园建筑的楼层均装有手动火灾报警系统。

The floors of all campus buildings are equipped with manual fire alarm system.

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然而触动火山喷发的原因还不是很清楚。

The nature of eruption triggering, though, is not well understood.

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电动火车已经取代了蒸汽火车。

Electric trains have now taken the place of steam trains.

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为这样一些小事动火毫无必要。

There is no need to get up in arms about such trifles.

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用不着为了这么一点小事动火。

There is no need to get up in arms over such a trifle.

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办理作业许可证才能进行动火作业。

Get a work Permit before you can start the hot work.

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安：我爸爸拥有电动火车。

An: My father has electric trains.

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他的新玩意儿是他上星期买的电动火车。

His latest toy is the electric train he bought last week.

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在我国电动火车现在已取代蒸汽火车了。

Electric trains have now taken the place of steam trains in our country.

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当合金流进连接处时，要前后移动火焰。

Move flame back and forth as alloy is drawn into joint.

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在更换过程中无需动火，可以继续生产。

This combined with no hot work allows you to continue producing throughout the replacement process.

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他挥动火把把狼吓跑了。

He waved his torch to frighten away the Wolf.

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他在求职信中写道：“我有一条电动火车轨道。”

In his letter he wrote, "I have an electric train track."

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他在求职信中写道：“我有一条电动火车轨道。”

In his letter he wrote, "I have an electric train track."

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