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the working system of the electric plates in the eel is the most effective the working system of the electric plates in the eel is far inferior to those in the torpedo compared with those in the torpedo, the working system of, electric plates in the eel is more direct and efficient compared with other electric fish, the eel possesses much more electric plates
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a mature torpedo is capable of producing enough electricity to knock down a man the mass of the fish decides the intensity of electric power it generates the strength of shock given by a young electric ray can only light the bulb of a pocket flashlight to make full use of the energy produced by electric fish, suitable wires should be available
mechanical lubricator lubrication function forced feed system bearing lubrication
the current in one place is not strong enough to give a shock the fish’s electric cells are filled with jelly-like substance to complete the circuit, you have to touch the fish in two places a torpedo’s electric cells contain more than one electric plates
（1） only （2） only both （1） and （2） neither （1） or （2）
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of the diaphragm type of the centrifugal type of the positive displacement type independently driven by electric motors
the working system of the electric plates in the eel is the most effective the working system of the electric plates in the eel is far inferior to those in the torpedo compared with those in the torpedo, the working system of electric plates in the eel is more direct and efficient compared with other electric fish, the eel possesses much more electric plates
the current in one place is not strong enough to give a shock the fish's electric cells are filled with jelly-like substance to complete the circuit, you have to touch the fish in two places a torpedo: s electric cells contain more than one electric plates
a mature torpedo is capable of producing enough electricity to knock down a man the mass of the fish decides the intensity of electric power it generates the strength of shock given by a young electric ray can only light the bulb of a pocket flashlight to make full use of the energy produced by electric fish, suitable wires should be available
the current in one place is not strong enough to give a shock the fish's electric cells are filled with jelly-like substance to complete the circuit, you have to touch the fish in two places a torpedo: s electric cells contain more than one electric plates
the working system of the electric plates in the eel is the most effective the working system of the electric plates in the eel is far inferior to those in the torpedo compared with those in the torpedo, the working system of, electric plates in the eel is more direct and efficient compared with other electric fish, the eel possesses much more electric plates
the capacity to generate electricity is the distinctive characteristic of the fish the current travels in an upward direction from the positive side to negative side in torpedo’s electric cells some fish can produce enough electricity to drive a number of electric motors the torpedo’ s electric cells have a shape with six sides
the working system of the electric plates in the eel is the most effective the working system of the electric plates in the eel is far inferior to those in the torpedo compared with those in the torpedo, the working system of, electric plates in the eel is more direct and efficient compared with other electric fish, the eel possesses much more electric plates
a mature torpedo is capable of producing enough electricity to knock down a man the mass of the fish decides the intensity of electric power it generates the strength of shock given by a young electric ray can only light the bulb of a pocket flashlight to make full use of the energy produced by electric fish, suitable wires should be available
the current in one place is not strong enough to give a shock the fish’s electric cells are filled with jelly-like substance to complete the circuit, you have to touch the fish in two places a torpedo’s electric cells contain more than one electric plates
the working system of the electric plates in the eel is the most effective the working system of the electric plates in the eel is far inferior to those in the torpedo compared with those in the torpedo, the working system of electric plates in the eel is more direct and efficient compared with other electric fish, the eel possesses much more electric plates
the current in one place is not strong enough to give a shock the fish’s electric cells are filled with jelly-like substance to complete the circuit, you have to touch the fish in two places a torpedo’s electric cells contain more than one electric plates
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