30%−40%NH330 \%-40 \% \mathrm{NH}_{3}30%−40%NH3
40%−60%NH340 \%-60 \% \mathrm{NH}_{3}40%−60%NH3
35%−40%NH335 \%-40 \% \mathrm{NH}_{3}35%−40%NH3
সবকটি
