A、the discharge valve is open
B、the control box glass is broken
C、pressure from the control cylinders is detected
D、the control cylinders have been completely discharged
更多“CO<sub>2</sub> cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.”相关的问题
A、CO、CO<sub>2sub>、O<sub>2sub> B、CO<sub>2sub>、O<sub>2sub>、CO C、O<sub>2sub>、CO、CO<sub>2sub> D、O<sub>2sub>、CO<sub>2sub>、CO
A、C+O<sub>2sub>=CO<sub>2sub> B、CO<sub>2sub>+C=2CO<sub>2sub> C、2CO<sub>2sub>+O<sub>2sub>=2CO<sub>2sub> D、2CO=CO<sub>2sub>+C
A、CO+2H<sub>2sub> = CH<sub>3sub>OH+Q；CO<sub>2sub>+3H<sub>2sub>= CH<sub>3sub>OH+H<sub>2sub>O+Q B、CO+H<sub>2sub>O = CO<sub>2sub>+H<sub>2sub>；4CO+8H<sub>2sub> = C<sub>4sub>H<sub>9sub>OH+3H<sub>2sub>O C、CO+3H<sub>2sub> = CH<sub>4sub>+H<sub>2sub>O+Q ；CO<sub>2sub>+4H<sub>2sub> = CH<sub>4sub>+2H<sub>2sub>O+Q D、CO+2H<sub>2sub> = CH<sub>4sub>+Q；CO<sub>2sub>+3H<sub>2sub> = CH<sub>4sub>+H<sub>2sub>O+Q
A、C+O<sub>2sub>→CO<sub>2sub>+Q，C+O<sub>2sub>→CO+Q B、CO<sub>2sub>+C→CO-Q，CO+H<sub>2sub>→CH<sub>4sub>+H<sub>2sub>O+Q. C、C+O<sub>2sub>→CO+Q，C+H<sub>2sub>O→CO+H<sub>2sub>-Q D、CO<sub>2sub>+C→CO-Q，C+H<sub>2sub>O→CO+H<sub>2sub>-Q
A、CO<sub>2sub>＋H<sub>2sub>S→CS<sub>2sub>＋2H<sub>2sub>O B、CO<sub>2sub>＋2S→CS<sub>2sub>＋O<sub>2sub> C、CO<sub>2sub>＋2H<sub>2sub>S→CS<sub>2sub>＋H<sub>2sub>O D、CO<sub>2sub>＋2H<sub>2sub>S→CS<sub>2sub>＋2H<sub>2sub>O
A、C+O<sub>2sub>=CO<sub>2sub> B、C+O<sub>2sub>=CO C、CO+H<sub>2sub>O=CO<sub>2sub>+H<sub>2sub> D、C+H<sub>2sub>O=CO+H<sub>2sub>
A、T↑：CH<sub>4sub>↓、CO↑、CO<sub>2sub>↑、H<sub>2sub>↑ B、T↑：CH<sub>4sub>↓、CO↑、CO<sub>2sub>↓、H<sub>2sub>↑ C、T↑：CH<sub>4sub>↓、CO↑、CO<sub>2sub>↑、H<sub>2sub>↓ D、T↓：CH<sub>4sub>↓、CO↑、CO<sub>2sub>↑、H<sub>2sub>↑
A、O<sub>2sub>，N<sub>2sub>，CO B、CO，CO<sub>2sub>，O<sub>2sub> C、CO<sub>2sub> D、N<sub>2sub>，CO，CO<sub>2sub>
A、温度越高，CO<sub>2sub>在水中的溶解度越大，除CO<sub>2sub>效果就越好 B、温度越高，CO<sub>2sub>在水中的溶解度越小，除CO<sub>2sub>效果就越好 C、温度越高，CO<sub>2sub>在水中的溶解度越小，除CO<sub>2sub>效果就越差 D、温度越低，CO<sub>2sub>在水中的溶解度越小，除CO<sub>2sub>效果就越好
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