开发等级 meaning in Chinese

hierarchy of development

Willing mountain nature reserve is the only nature reserve in hebei province by state ' s level , its exploitable degree is very high which embodies the harmony of three kinds of benefits . at the same time , it sticks to the policy of ecotourism sustainable development and builds the forest park of wuling mountain
雾灵山自然保护区是河北省唯一的国家级自然保护区，其旅游业开发等级较高，在坚持生态旅游可持续发展的原则下，建设的雾灵山森林公园，充分体现了三大效益的有机统一。