A、litmus paper
B、combustible gas indicator
C、oxygen breathing apparatus
D、oxygen indicator
更多“Deficient oxygen content inside a chain locker can be detected with（）.”相关的问题
A、litmus paper B、a combustible gas indicator C、an oxygen breathing apparatus D、an oxygen indicator
A、A.litmus paper B、B.a combustible gas indicator C、C.an oxygen breathing apparatus D、D.an oxygen indicator
A、Oxygen deficient spaces B、Compartments containing poisonous vapors C、Fighting fires that produce heavy smoke D、Underwater search
A、Oxygen deficient spaces B、Compartments containing poisonous vapors C、Fighting fires that produce heavy smoke D、Underwater search
A、should be worn while fighting a fire B、can be used in atmospheres deficient in oxygen C、filter contaminants from air that is to be breathed D、may be substituted for a self-contained breathing apparatus
A、A.should be worn while fighting a fire B、B.can be used in atmosphere deficient in oxygen C、C.filter contaminants from air that is to be breathed D、D.may be substituted for a self-contained breathing apparatus
A、A.Toxic gasses may be present B、B.Flammable gasses may be present C、C.Liquid muds may flood adjoining spaces D、D.An oxygen-deficient atmosphere may be present
A、A.oxygen and explosion meter when it is used for detection of flare gases B、B.self-contained breathing apparatus，when used as protection from gas leaking from a refrigeration unit C、C.boots and gloves that are made of rubber or electrically non-conductive material，if used when repairing electrical equipment D、D.lifeline，if used by personnel entering a compartment which might be deficient of oxygen
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