The factors that influence subgrade's strength and stability has the nature of soil, moisture content of soil and so on.

影响路基强度和稳定性的因素有土的性质、土的含水率等。

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People pay more attention to the influence of the nature of soil on subgrade as it is the important material to construct subgrade.

土作为修筑路基的重要材料，其性质对路基的影响倍受人们的关注。

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The test result showed that developmental root system could improve the physical and chemical nature of soil, increase yield of latter-crop.

结果表明，强大的绿肥根系，能够改善土壤理化性质，提高后作物产量。

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They say the roots develop better. But Jeffrey Dinslage, president of Nature Hills Nursery in Omaha,Nebraska, points out that bare-root roses come without soil.

VOA: special.2010.06.15

Nature plants the seeds through birds or animals on top of the soil.

VOA: special.2010.07.13

The corrosive nature of the ground soil and pressures from a nearby brick wall and telecom unit may have caused a fracture in the cast iron mains pipe, the HSE said in its report.

BBC: Police awards for Shrewsbury gas explosion rescue

But a partnership among The Nature Conservancy, the University of Georgia and the Flint River Soil and Water Conservation District are working to bring down the cost for Flint River farmers by supplementing their contributions with a variety of grants and federal funding sources, including the USDA Natural Resources Conservation Service.

FORBES: New Technology Reduces Agricultural Water Consumption

But with Mr Obama's determination to close it down defeated by a Congress revolted by the idea of trying the detainees on American soil, it may be a long time before nature reclaims Guantanamo as a whole.

BBC: Art classes and square eyes at Guantanamo Bay