‘The engine also complies with TA-luft -5% O2 content exhaust emission regulations’
是说,发动机应符合TA-luft -5% O2 排放规范
‘The engine also complies with TA-luft -50% exhaust emission regulations’ 是下面的意思,
The engine complies with EU stage 2 emission legislation according to the Non Road Directive EU 97/68/EEC. The engine also complies with TA-luft -50% exhaust emission regulations