A massive oak claims its ground for 200 years or more, outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil.
200年或更久的时间里，一棵巨大的橡树占据了它的土地，投下浓密的树荫，吸收土壤中所有自由水分，打败了所有其他可能成为树冠的树木。
Free to adjust water height and Angle, when clean rough ground, to ensure the cleaning effect.
自由调节水刮高度和角度，在清洁高低不平的地面时，确保清洁效果一致。
The results further our understanding of soil-water interaction under shaking, and provide the data for validating the analytical methods of the seismic response of free ground.
研究结果增强了对振动过程中土-水之间相互作用机理的理解，同时为自由场地震响应分析方法的验证提供了基础数据。
Unlike ground water, rain water does not contain minerals or salts and is free of chemical treatments.
和地下水不同，雨水不含矿物质或盐类，因此无需化学处理。
Unlike ground water, rain water does not contain minerals or salts and is free of chemical treatments.
和地下水不同，雨水不含矿物质或盐类，因此无需化学处理。
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