研究员依据六项指标对各国进行了评级：物质满足感；住房与环境；教育的完善程度；健康与安全；危险行为；学校生活的质量。
Researchers ranked countries on variables in six categories: material well-being; housing and environment; educational well-being; health and safety; risky behaviour; and quality of school life.
提供质量，健康与安全，环境，社会责任领域的检验，测试及认证服务。
Provide inspection, testing and certification services in the areas of Quality, Health & Safety, Environment and Social Accountability.
完全理解和掌握与指定工艺单元操作任务相关的操作规程，环境、健康和安全规程以及质量控制规程。
Ensures the smooth and safe running of committed unit in production line with strict follow-up of operation procedure production instructions and EHS regulations.
应用推荐