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- The concentration of Cr6+ was higher in topsoil and Hg2+ in upper soil, but the distribution of Pb2+ in soil showed no apparent trend. Cr6+在土壤表层分布浓度较高,Hg2+在近地表层浓度较高,而Pb2+在土层上的分布没有明显的规律。
- Evaporation influenced the soil water distribution mainly in the upper soil layer at the initial stages of irrigation. Less irrigation frequency would lead to greater uneven water distribution. 蒸发和灌水频率对风干土壤中水分分布的影响表现为:1)有、无蒸发条件下土壤水分差异在灌水初期主要体现在上部土层,此时,灌水频率越低,此区水分差异越大;
- Dissolved organic carbon(DOC) adsorption and its influence factor on the soil of Chinese fir plantation were studied with IM isotherm in laboratory experiments. The quantities of DOC adsorption in the lower soil are greater than that of the upper soil. 用模拟实验的方法借助原始物质吸附等温线对杉林土壤溶解有机碳(DOC)的吸附及其影响因素进行了研究。
- Soil N2O discharge flux of mulch was higher than that of no mulch treatment, and with the depth of 5, 10, 20cm the soil N2O discharge flux and the net adding flux increased in the order of depth in the upper soil layers. 3 地膜覆盖使5,10,20cm土层处N_2O的排放通量较未覆膜处理显著增加,且随着土层的加深,排放量依次增大,增加幅度也表现为下层大于上层。
- Tears are secreted by an organ under the upper eyelid. 眼泪由上眼睑下面的器官分泌。
- I'd like a room on the upper level. 我想要楼上的房间。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- My hometown is in the upper reaches of the river. 我的家乡在这条河的上游地区。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- He locked his diary in the upper drawer. 他把日记锁在上层抽屉里。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么?
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- He have tattoo the name "marlene" on his upper arm. 他将"玛琳"这个名字刺在臂的上方。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- A band or badge worn around the upper arm. 臂章戴在上臂的绑带或徽章
- There are some clods of soil on the mat. 垫子上有些土块。
- A canine tooth of the upper jaw. 上颚犬齿上颚的一个犬齿
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- He's between the upper and nether millstone. 他深受上下夹攻。
- This part of town is where the upper class live. 镇上这个地区是上层阶级的人住的。