The allowable charged amount of acetylene and acetone controlled and balanced by Mollier diagram can make them in safe equilibrium condition.

利用莫勒图法平衡和控制乙炔、丙酮的允许充装量，能令二者处于安全的平衡状态。

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The killer then returned to Mr Mollier, who had been wounded by the first shots, police believe.

BBC: French Alps murders: Cyclist 'was shot first'

The fourth victim, a cyclist whose body was found near the car, has been named as 45-year-old Sylvain Mollier.

BBC: Alps shootings: Bomb squad visits Saad al-Hilli home

Mr Mollier worked for a subsidiary of a company called Areva Group, producing metals for use in constructing nuclear reactors.

BBC: French Alps murders: Cyclist 'was shot first'