排はい出しゅつ係けい数すうMeaningsNoun1. emission factor (of greenhouse gases)Kanji used排discharge出exit係be involved with数numberComposed of排はい出しゅつdischarge; evacuation; emission (e.g. of CO2); ejection; excretionNoun係けい数すうcoefficient; factor; proportional constant; modulusNoun