稀有濒危树种
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rare and endangered tree species 珍稀濒危树种
rare and endangered tree
珍稀濒危树种
以上为机器翻译结果,长、整句建议使用 人工翻译 。
The situation of the rare tree species being threatened by the pollution substances is investigated. The endangered mechanism and its symptoms are analyzed. The protection measures are proposed.
对成都市的主要古树名木被环境污染物质危害的现状进行实地调查,从受害症状入手,对受害机理作分析,并提出保护古树名木的具体措施。
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