質量 しつりょう保存 ほぞんの法則 ほうそく

shitsuryōhozonno hōsoku

1. Not the law of conservation of mass.

1. Was the law of conservation of mass.

1. Law of conservation of mass.

1. Law of conservation of mass

1. It is not the law of conservation of mass.

1. It's not the law of conservation of mass.

1. Law of conservation of mass was.

1. Law of conservation of mass.

1. It is not the law of conservation of mass.

1. Wasn't the law of conservation of mass.

1. Probably the law of conservation of mass.

1. It was not the law of conservation of mass.

1. It wasn't the law of conservation of mass.

1. Probably the law of conservation of mass.

1. It was not the law of conservation of mass.

1. If/When the law of conservation of mass…; If the law of conservation of mass were…

1. If the law of conservation of mass; If mass conservation holds

1. If the law of conservation of mass…; When the law of conservation of mass…