你可能感兴趣的试题
harder it is to extinguish easier it is to extinguish less chance there is of re-ignition easier it is to control
generate its own electrical power transform electrical energy into mechanical energy increase or decrease circuit voltage as required convert AC current to DC current
notify the engineer on watch isolate and secure the piping throw sand on the fire extinguish the fire using a combination nozzle with applicator
have little or no electrical resistance. can be used for a long time. are not energy-efficient. can be made easily.
extinguish prevent suppress ruin
class A class B class C class D
extinguish prevent suppress ruin
exclude eliminate extinguish impose
electrical; electric electrical; electrical electric; electrical electronic; electric
cancel omit extinguish erase
removing the heat removing the oxygen removing the fuel interrupting the chain reaction
the "snow" which is sometimes discharged along with the gas is toxic prolonged exposure to high concentrations of C02 gas causes suffocation rapid dissipation of the CO2 vapor the CO2 gas is lighter than air and a large amount is required to extinguish a firenear the deck
there might be an invisible injury deeper inside the body. many Americans die each year from electrical burns. lightning is too much for a person to endure. electrical bums will always lead to serious injury inside the body.
take no measures extinguish the fire as soon as possible feed water to the boiler open the blow down valve
exclude eliminate extinguish impose
Any one component can be eliminated to extinguish a fire Any two components must be eliminated to properly extinguish a fire Any three components must be eliminated to properly extinguish a fire Ali four components must be eliminated to extinguish any fire
begin support last extinguish
electrical signals must first be changed' into light signals and then into sound the light signals have to be changed directly into sound light must first be changed into electrical signals and then into sound neither the light nor the electrical signals have to be changed in any way