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- soil chemical nature 土壤化学性质
- Radium chemical nature lively, and barium similar. 镭的化学性质活泼,与钡相似。
- Soil Chemical Analysis on the Process of Soil Acidification. 土壤酸化过程的土壤化学分析
- Water-permeability plastic membrane mulching could modify soil's physical and chemical nature, forming a more harmonious rhizospere micro-ecological environment. (3)渗水地膜可改善土壤理化性状,构成协调性较好的根际微生态环境。
- The next decisive step was the discovery of the chemical nature of genes. 下一个决定性的步骤是探索基因的化学性质。
- Changes of soil chemical properties after transferring acid sulfate paddy soil to upland soil. 酸性硫酸盐土水改旱后土壤化学性状的变异初报。
- Effect of natural zeolite on soil nutrient bioavailability and soil chemical properties. 沸石对土壤养分生物有效性和土壤化学性质的影响研究。
- Admittedly, much information on the chemical nature of other endosperm tissues, not included here, is available. 自然,这里没有概括进去的其它胚乳组织化学性质的许多资料,也是有用的。
- Effect of plant community succession on soil chemical properties in Tiantong, Zhejiang Province. 浙江天童植物群落演替对土壤化学性质的影响。
- Because of various chemical nature of water, hotspring has different curative effect for different disease. 温泉的水质不同,则对不同的病症具有不同的疗效。
- Currently, there are no effective seed or soil chemical treatments for the management of powdery scab in China. 本试验于2005年对云南省马铃薯粉痂病的综合防治技术进行了大田试验和温室盆栽试验。
- Plants cells have a wall which is non-living in chemical nature whereas animal cells do not have this characteristic. 植物细胞有一层在化学自然状态中没有生命的隔膜,而动物细胞却没有这个特征。
- The carcinogenic effect of nitrosamines is shown indirectly by its chemical nature,which is easy to gener... 预防其危害的主要手段是减少亚硝胺类化合物及其前体硝酸盐、亚硝酸盐的摄入和阻断亚硝胺类化合物在体内合成。
- Eng.) Introduction to the basic principles of chemical thermodynamics and kinetics and their application to soil chemical processes. 中)介绍土壤反应与过程之化学热力学和动力学之基础原理。
- The results indicated that soil enzyme activity significantly correlated with soil chemical property and soil microbial quantity,except for the ca. 研究表明,随着填埋深度的加深,土壤理化性质,微生物数量和土壤酶活性有很大不同。
- It was found that retarding admixtures belonged to the category of coordination compounds,its chemical nature was attributed to coordination bond. 配位学说和立体化学有关理论,分析研究了无机、有机缓凝外加剂的分子结构和特征,发现缓凝外加剂都是配位化合物,化学本质是配位键。
- By the chemical nature, the chlorophyll is Green Leaf acid can occur Chlorophyllin is one was by another by esterification. 叶绿酸是双羧酸,其中一个羧基被甲醇所酯化,另一个被叶醇所酯化。
- Modified high-aluminum bricks made from silica can change its physical and chemical nature great ly and possess great value of application. 以硅线石为基质制成的改性高铝砖,可大大改变制品的理化性能,具有较大的应用价值。
- The effects of different reclamation measures on soil chemical properties and plant growth in mining wasteland were studied in Fushun city, Liaoning province. 在辽宁省抚顺市,初步研究了不同复垦措施对矿区废弃地土壤化学性质和植物生长的影响。
- Classified according to chemical nature of water, hotspring can be divided into neutral carbonated spring, alkali bicarbonates spring, brine spring and sulfur spring. 根据水质划分,温泉一般分为中性碳酸泉、碱性碳酸氢钠泉、盐泉和硫磺泉四种。