The flow charts of optimum scheme for low temperature grain storage in three ecological areas were provided respectively in this paper.

同时给出了三个储粮生态区域低温储粮优化方案的工艺流程图。

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The ecological distribution of denitrifying bacteria in the three soils was studied.

研究了三种土壤反硝化细菌的生态分布。

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The conception of road landscape ecology is fresh in China, which mainly contains three aspects of contents: ecological effect of road, aesthetics quality assessment and landscape planning or design.

道路景观生态学目前在国内还是一个较新的概念，作者认为该领域主要包括三方面内容道路生态学影响、道路景观美学评价、道路景观规划与设计。

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Extensive ecological studies are underway in three African countries, including DR Congo, to try to find the "reservoir" - this work essentially involves checking for signs of the virus in thousands of different species of animal, in order to identify the carrier.

BBC: Africa's emerging virus threat

The authority rates all but three of the basin's 23 river valleys as being in a poor ecological state.

ECONOMIST: Australia's water war