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| 碳酸气; 窒息性空气 | |||
| 窒息性空气体; 二氧化碳 | |||
| 窒息性气体虽然不至于使人体中毒,但如果吸人过量后会使人窒息的气体,如二氧化碳、氮气等。爆炸后的炮烟含有大量的窒息性气体; 窒息性气体爆破后形成的炮烟含有大量窒息性气体，如二氧化碳、氮气等,虽然不至于使人中毒,但如果吸人过量后会使人窒息 | |||
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black damp : 1 phrase in 1 subject |
| Telecommunications | 1 |
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