A low-pressure mercury vapor discharge lamp is operable in a first mode of operation ('normal mode') and a second mode of operation ('emergency operation').

低压汞汽放电灯操作在第一操作模式（“正常模式”）和第二操作模式（“紧 急操作”）下。

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That, one would have thought, implies ever-closer co-operation between Mercury's and Merrill's fund-managers.

ECONOMIST: Asset management: Mercury falling | The

Critics, however, say the mining operation will destroy forests in the area, contaminate groundwater and pollute the air with chemical substances like lead, mercury and arsenic.

BBC: Arsonists attack Hellas gold mine in northern Greece