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1·This irritant gas is crucial to the well-being of the life on our planet.

这种刺激性气体对我们星球上生命的安康至关重要。

2·The occupational main hazard substances that the subjects contacted were organic solvent, productive dust and noise, irritant gas, metal poison.

职工接触的职业有害因素以有机溶剂、粉尘和噪声、刺激性气体、金属毒物为主。

3·Then it gets rather more high-tech. Capua's high-vacuum, low-temperature equipment removes bergaptene, an irritant, from the oil; and it is then stored under nitrogen gas to stop it oxidising.

后来萃取的方法更加更高科技化了，卡普阿公司的高压低温设备能将刺激物，bergaptene(一种脂)与油分离；然后将香油储存在氮气中防止其氧化。