覆盖物在土壤与空气之间形成屏障。
盖土形成土壤与空气之间的屏障，其结果是，被覆盖的土壤在夏季会较凉爽，而在冬季，不会让土壤像没有盖土的区域一样冻得那么深。
Mulch forms a barrier between the soil and the air. As a result, mulched soil will be cooler in the summertime. And in winter, it may not freeze as deeply as areas without mulch.
她说，大自然提供的物质与服务，比如清洁空气、雨水和肥沃的土壤，不应被认为是当然的存在。
She says that the goods and services provided by nature - like clean air, rain or fertile soils - should not be taken for granted.
他说，那些认为长寿与空气、水或者土壤所含物质有关的观点简直就是“胡说八道”。
The notion that something in the air, water or soil can prolong life is 'nonsense, ' he says.
同时由于越来越多的人受空气，水资源以及土壤恶化与污染的影响也是影响社会稳定的另外的因素。
Social stability is another factor as more people are enraged by worsening air, water and soil pollution.
二氧化碳由于燃烧和呼吸连续不断地进入空气中，但它通过与雨水、海洋、岩石和土壤结合又不断地离开空气。
Carbon dioxide is continually entering the air as a result of burning and breathing, but it is also continually leaving the air by uniting with the rain, the oceans, rocks.
林内的土壤温度与空气温度比林外低，而空气湿度则比林外高。
In the forest the soil and air temperatures are lower, but the humidity is higher than on the open ground.
该研究还指出了，当耕作土壤颗粒与空气接触，土壤有机质就会在氧化过程中流失。
The study also noted that when tilled soil particles come in contact with air, soil organic matter is lost through the process of oxidation.
通过自由入渗与恒定土壤空气压力入渗试验结果对比得出，研究入渗问题必须考虑禁锢土壤空气压力的影响作用。
The experiment for comparing the infiltration affected by entrapped air with free filtration was carried out. It is found that the effect of air pressure is not negligible.
提出准三维土壤—空气传热传质模型，对地道通风系统内空气与土壤之间的热物理过程进行数值模拟。
A quasi-three-dimensional model was developed to simulate earth-to-air heat exchange process in underground duct system(UDS), which ignores heat transfer in the earth in the direction of air flow.
提出准三维土壤—空气传热传质模型，对地道通风系统内空气与土壤之间的热物理过程进行数值模拟。
A quasi-three-dimensional model was developed to simulate earth-to-air heat exchange process in underground duct system(UDS), which ignores heat transfer in the earth in the direction of air flow.
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