Applying plant allelopathy to inhibit weeds can not only efficiently reduce the use of chemical herbicide and cost, but also protect environment and improve crop product.

利用植物化感作用防治农田杂草，可以减少化学除草剂的使用，减轻环境压力，降低生产成本，达到增加作物产量等目的。

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Wear clothes that are comfortable for the environment in which you're working, but also will protect your body from any wayward wood chips that might result from cutting.

你穿的衣服要使你在那种工作环境下感到舒服，同时也要防止被木屑割伤。

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Implementation of the closed loop management, saving resources, but also protect the environment.

实施密闭循环管理，既节省了资源，又保护了环境。

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Will you say that living in a world where individuals not only want to protect their property from thieves, but also from the environment (such as fires), is a lesser value than the destruction of it (the purpose of firefighters)?

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This also creates a political environment where the incentive is not to spur innovation, but to protect the already established.

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