毒气

抢修人员经过三个小时紧急排险，终于彻底封堵了化工厂地下管道的有毒气体泄漏点。

qiǎng xiū rén yuán jīng guò sān gè xiǎo shí jǐn jí pái xiǎn, zhōng yú chè dǐ fēng dǔ le huà gōng chǎng dì xià guǎn dào de yǒu dú qì tǐ xiè lòu diǎn.

After three hours of emergency work, emergency repair crews finally completely blocked the toxic gas leak in the underground pipeline of the chemical plant.

密闭地下管道内部往往积聚着高浓度的硫化氢毒气，贸然进入极易引发缺氧窒息危险。

mì bì dì xià guǎn dào nèi bù wǎng wǎng jī jù zhe gāo nóng dù de liú huà qīng dú qì, mào rán jìn rù jí yì yǐn fā quē yǎng zhì xī wēi xiǎn.

High-concentration hydrogen sulfide poisonous gas often accumulates inside closed underground pipelines. If it enters rashly, it can easily lead to the risk of hypoxia and suffocation.