"Research has shown that chalk stream salmon are genetically unique and irreplaceable. They play a vital role in the ecosystem, supporting insects, birds, mammals, and other river life," the trust said.
f(x)=(xW1)⊙σ(xW2)
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这是履职尽责的价值导向：“多打大算盘、算大账，少打小算盘、算小账”“实际上就是要处理好大我和小我的关系，长远利益、根本利益和个人抱负、个人利益的关系”。
Conservator Jonathan Carr said the Thetford find was made "from extremely thin sheets of metal which have become extremely brittle after 2,000 years in the ground".