《极地防污染证书》
arctic pollution prevention certificate
安全与防污染
safety and preventing-pollution management
船舶防污染
marine anti-pollution
pollution prevention of ships
oil pollution from vessels
prevention of ship’s pollution
ship pollution source processing
大气污染防治
preven tion and control of air pollution
大气污染防治工程
air pollution prevention engineering
air pollution control engineering
地下水污染防治
ground water pollution prevention
地下水污染防治规划
Pollution prevention plan
防污染标准
antipollution standard
anti-pollution standards
standard thermal cyclic rating
防污染技术
Pollution prevention technology
防污染检查
Pollution prevention management