エチレンだった
echirendatta
1. Was ethylene.
Noun
#166666
1. Was ethylene.
1. Was polyethylene.
1. If it were polyethylene.; When it is polyethylene.
1. Was tetrachloroethylene.
1. if tetrachloroethylene; were tetrachloroethylene
1. if trichloroethylene; when trichloroethylene
1. Was trichloroethylene.
1. ethylene
1. If it were ethylene.; When it's ethylene.
1. ethylene glycol; ethanediol