道源圣城玉琮高9.9米，直径1.3米，由天然花岗岩雕刻而成。
The Cong here is engraved from natural granite, 9.9m high and 1.3m in diameter.
环境中由粪源产生的雌激素，由于其活性高、产生量大而对人类的生存和健康产生严重威胁。
Natural and synthetic estrogens, mainly manure-borne, seriously threaten man's survival because of their high estrogenic activity as well as big production.
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