青云翻译

Test vehicle should be kept closed windows, air conditioning, radio, etc. should be closed

Test vehicles shall be kept closed, Windows, air conditioning, radio, should be closed

When experiment the vehicles should maintain the seal as far as possible, the glass, the air conditioning, the radio and so on should shut down

Testing should be vehicle at the time, try to keep the windows closed, air-conditioning, radio, should be turned off

Test vehicles shall be kept closed, Windows, air conditioning, radio, should be closed