土层

Methacrylic acid-acraldehyde/ montmorillonite nanocomposites were prepared using Na+- montmorillonite via in-situ polymerization of methacrylic acid and acraldehyde in aqueous medium.

采用水溶性聚合单体甲基丙烯酸和丙烯醛在钠基蒙脱土层间直接原位插层聚合制备水溶性MAA-AL/MMT纳米复合材料，通过XRD和TEM对纳米复合材料的结构进行表征，采用TGA、DSC研究了纳米复合材料的热性能，同时考察了甲基丙烯酸与丙烯醛配比及体系pH值对纳米复合材料结构及应用性能的影响。

In different replant years, the quantity of bacteria, actinomycete and fungi and the proportion of each in total numbers were different, the quantities of bacteria and fungi increased with replant year increased, while, that of the actinomycete reduced along with replant years increasing.

不同栽培年限蘑菇覆土层土壤中的细菌、放线菌和真菌的数量及其在微生物总数中所占的比例不同：不同栽培年限的土壤样品中，细菌和真菌的数量随着栽培年限而增加，放线菌的数量随着栽培年限的增加而减少。

The underground root systems and the plenty of adventive roots growing on basis trucks can greatly reduce soil erosion by reservoir water. The 1 m×1.5 m allocation density of the Salix viminalis showed the best protection, and sediment yield was 8.64 kg/m^2, which decreased 74.38% compared to CK.

柳树根系及主干基部长出的大量不定根，可减缓水库水流对滩地土层的冲蚀，以青刚柳1m×1.5m密度配置的防护效果最好，冲蚀量仅8.64kg/平方公尺，比对照减少74.38%。

The water contents in 1m soil layer of eight vegetation types in Yuanmou dry and hot valley in rainy season(August 2 to September 2) were measured and analyzed.These eight vegetation types are Pinus caribaea plantation,Pinus caribaea+Dodonaea viscosa plantation,Albizzia kalkora natural regeneration forest;Dodonaea viscosa+Tephrosia candida plantation,eucalyptus plantation,grassland,waste land and expansive soil.

通过对元谋干热河谷区加勒比松人工林、加勒比松+车桑子人工混交林、山合欢天然更新林、车桑子+山毛豆人工混交林、桉树人工林、草地、荒坡、膨胀土8种植被类型林地1 m土层内不同层次雨季(8月2日~9月2日)土壤水分含量的分析研究得出：在雨季8种植被类型林地土壤的水分含量均较低，因其土壤的物理性能较差，故蓄水保水能力也较差；各植被类型林地土壤的有机质、养分含量均极低，按照土壤养分含量分级标准，各植被类型林地土壤的养分含量均在6级以下。

Jet grouting with high pressure is of particular advantage to strengthening of the ground in thick alluvion and soft soil vulnerable to seismic damage.

对震害严重的厚冲积层或厚软土层，用高压喷射注浆法进行加固处理有其独特的优越性。

Pretreatment can take full advantage of the local rock layers or the stability of their own, linked with the excavation layered reinforced concrete spraying.soil and debris to avoid the small joints broken rock slope collapses, and earth pressure anchor plate passed by the concentrated suspension bolt,bolt through the anchoring force of earth pressure balance.

可以充分利用岩土层自身或预处理的局部的稳定性，随基坑开挖分层挂钢筋网喷射砼，以避免土层碎片及岩石边坡小的节理破碎坍塌，并把土压力传给锚板，由锚杆集中受力，通过锚杆的锚固力平衡土压力。

In this paper, only the effect of the anisotropy of the earth covering was considered.

本文仅仅研究了覆盖土层各向异性对场地微动的影响。

An archaeologically valuable ancient tomb was unearthed in the underlying soil of this corn field.

这片玉米地下伏土层中出土了一个有考古价值的古墓。

The history and the main content of soil loss tolerance study are reviewed in this paper,and the method of using Barth equation and on the basis of the risk assessment are also introduced.

国际上现有的T值标准主要是从土层厚度和成土速率出发，并结合实际应用的可能而定。

There are a significant correlation between root length density and yields of cotton at flowering and boll opening stage.

花铃期、吐絮期各土层棉花根长密度与产量呈显著的二次相关关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失