DOI: /10.25592/dgs.corpus-3.0-type-94426

CO1^


= CO-AIR1
Leipzig | dgskorpus_lei_14 | 31-45m   CO2 emissions used to be quite high in the past.
r$INDEX1PAST-OR-BACK-THEN1I2CO-AIR1$NUM-ONE-TO-TEN1A:2d$GEST-OFF^*
l
mfrüherco zwei
Leipzig | dgskorpus_lei_14 | 31-45m   Nowadays, there are CO2 filters as protection.
rNOW1CO-AIR1$NUM-ONE-TO-TEN1A:2dNET1C*SECURE1*
l
mjetztco zweifiltsicher

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