electrical instllation
electrical instllation
electrical energy
electrical energy
“electrical circuit”的意思（）
“electrical circuit”的意思（）
Battery serves as an electrical energy source．
Battery serves as an electrical energy source．
Who is the "electrical supervisor"? The man who __________. A: does the maintenance work B: is responsible for electrical safety C: is superman D: is superior to other employees
Who is the "electrical supervisor"? The man who __________. A: does the maintenance work B: is responsible for electrical safety C: is superman D: is superior to other employees
We will have this electrical appliances on time。(deliver)
We will have this electrical appliances on time。(deliver)
_____ is a machine by which electrical energy is transformed into mechanical energy.
_____ is a machine by which electrical energy is transformed into mechanical energy.
I think it is important to produce household electrical appliances that are _________.
I think it is important to produce household electrical appliances that are _________.
Their inventions have contributed to the_________________ of electrical engineering. (develop)
Their inventions have contributed to the_________________ of electrical engineering. (develop)
Starting system and ignition system belong to the electrical system？
Starting system and ignition system belong to the electrical system？