An orca surfaces for air in Gwaii Haanas National Marine Conservation Area Reserve in British Columbia.
不列颠哥伦比亚省的瓜依哈纳斯国家海洋保护区的逆戟鲸浮出水面呼吸空气。
2
For the reasons of nature conservation great attention is paid at the systems that use low-grade heat sources in their work (that is heat energy of soils, air, discharge and drain).
原因自然保护的关注在系统使用低品位热源的工作(热能的土壤、空气、放电和排水)。
3
Given the growing focus on energy conservation, the demand for replacing old air conditioning systems with new energy efficient models will be on the rise, thereby adding to market gains.