免耕模式的优点被强调为减少水分蒸发与逃逸，减少土壤侵蚀与表面土壤衰竭。
Advantages claimed for no-till are that it decreases water evaporation and runoff, soil erosion and topsoil depletion.
水蒸发后，土壤表面留下一层盐。
As the water evaporates, a crust of salt is left on the surface of the soil.
一旦接触土壤表面，这条“鼻涕虫”就会发生另一种变形。
Once it reaches the surface of the soil, the "slug" undergoes another transformation.
当种子落在合适的土壤表面时，一株新的植物就会在那里生长，但由于它们体型不大，它们无法与其他植物竞争空间、水分或阳光。
A new plant will spring up wherever a seed falls on a suitable soil surface, but because they do not build big bodies, they cannot compete with other plants for space, water, or sunlight.
湿地是指多沼泽的区域，软而湿的陆地，一年中的大部分时间有水覆盖着土壤、或是有水存在于土壤表面或接近土壤表面的地方。
Wetlands are areas of marshy, swampy land, areas where water covers the soil, or is present either at or near the surface of the soil for a large part of the year.
铝铁硅钙壳是土壤表面或其附近的一层硬物。
关于火星表面以下存在水冰的怀疑终于被证实了，根据正在进行的火星车的土壤分析，科学家和整个世界将获得进一步的信息。
Their suspicions about water ice beneath the surface of Mars confirmed, scientists and the world will have renewed interest in the outcome of the soil analyses currently being conducted by the lander.
在冰川进展过程中，它们剥脱了陆地表面的岩石和土壤，然后在撤退时将矿物质和营养物质释放到海洋中。
As the glaciers advanced, they scraped off the top layer of rock and soil on land and then released minerals and nutrients into the ocean as they retreated.
机械臂在美国航天局的火星登陆计划中是一个至关重要的部分，他将挖开土星表面冰冷的土壤并把采样带回航天器进行分析。
The robotic arm is a vital instrument on NASA's Phoenix Mars Lander. It will dig into the icy soil and bring samples back to the science deck of the spacecraft for analysis.
否则水就从土壤表面流失浪费了。
农业部说将福岛地区污染农田表面刮去4厘米厚的土壤将导致30万吨的粮食浪费。 如果把这些粮食堆起来都足以填满20个足球场。
Scraping 4cm of topsoil from contaminated farmland in Fukushima prefecture would create more than 3m tonnes of waste, says the agriculture ministry, enough to fill 20 football stadiums.
随着气候的变化以及土壤沙漠化，人类从根本上改变了地球的表面。
With climate change, concrete deserts and agriculture, human beings have fundamentally altered the face of the Earth.
航天器上的仪器显示，月球表面每立方米的土壤含水量可达约一公升。
Instruments aboard the spacecraft suggest that a cubic metre of soil on the lunar surface could hold around a litre of water.
相似的土壤分布得如此广泛，表明一个酸性海洋曾覆盖了大范围的火星表面，或许曾存在具有同样化学特性的众多湖泊。
Such a broad dispersal of similar soils argues for an acidic sea stretching across large swaths of Mars, or perhaps lakes with the same inherent chemistry.
如果土壤含沙量不够，则需在土壤表面覆盖3英尺的细沙。
If your soil does not contain a lot of sand, add a 3-inch layer of sand on top of the soil.
经常地检查在土壤表面下的木质柱子有无损坏和腐烂。
Inspect wooden tie posts regularly for damage and rotting below the soil surface.
同时位在表面的无人探测车精神号和机会号，继续检视火星的地貌、岩石和土壤，寻找火星古水世界存在的线索。
Meanwhile, down on the surface, robots Spirit and Opportunity continue to roll, inspecting landscape, rocks, and soil for clues to the ancient watery past of the red planet.
浇水的部分技巧是知道何时停下来给土壤吸收水分的时间。否则水会从表面流失，造成浪费。
Part of skilled watering is knowing to stop when the soil needs a little time to absorb the water. Otherwise the water runs off the surface and gets wasted.
覆雪表面具有高的反射率；土壤的反射率由高到低变化较大；植被表面和海洋的反射率较低。
Snow covered surfaces have a high albedo; the albedo of soils ranges from high to low; vegetation covered surfaces and oceans have a low albedo.
研究表明磷肥可以通过酸根形式来影响土壤表面电荷，进而影响土壤对重金属的吸附。
It has been showed that Phosphorous fertilizers can alter soil surface charge by acid radical, which influence metal ions sorption by soil.
随后氧气就被其它表面活性剂附着而运输到土壤中的更深地方，来滋养那些需要这些养分的植物。
The oxygen then is carried by other surfactants that attach unto it deeper into the soil to nourish those plants requiring such sustenance.
根毛从土粒表面吸收养分，所以，土壤的内表面积对土壤中的植物养分有很大影响。
Root hairs feed from the surface particles, therefore the internal surface area has a great influence on plant food in the soil.
土壤摩擦力还随固体表面光洁度降低而增加，随表面硬度增加而趋于减小。
The friction increases with the decrease in solid surface finish and tends to decrease with the increase in its surface hardness.
烧杯内表面上的传感器象一条电子舌头，品尝土壤以探测其中的水溶性盐分。
Sensors on the inner surface of the beakers act like electronic tongues and "taste" the dirt to detect salts that can dissolve in water.
但在土壤表面之下有着足够水分供玉米种子开始生长。
But below the surface, it has enough water to let corn seeds begin to grow.
研究了不同兑水量情况下，除草剂在免耕麦茬土壤表面和麦茬上的沉积规律。
The study of herbicide deposition on soil surface and wheat stubble in different wheat mulch conditions is conducted.
土壤腐殖质层可被定义为在草皮与土壤表面之间的一层有机残留物。
Thatch can be described as the layer of organic residue located immediately between the sward and the soil surface.
直根长圆筒状的，根深具一纤细和拉长的茎达土壤表面。
Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface.
直根长圆筒状的，根深具一纤细和拉长的茎达土壤表面。
Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface.
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