Must be provided with and use protection? To control any damage to environmental quality, or to cause harm or suffering annoying as a valid keyword. By obtaining the approval from the relevant government authorities.
Must be provided and the control system to cause a damaging effect on the environment. Or to cause danger or nuisance to the nearby pipeline. With the approval of the relevant government agencies.
To arrange and use the system to prevent, control, prevent damage to environmental quality To cause harm or suffering to those who live nearby, annoyed Approved by the concerned government agencies