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- soil quality classification 土壤质量分类
- Abstract The osculating value method is applied to the prior order of soil quality in this paper, a new method of classification is put forward according to the sharp change of osculating value. 摘要 本文将密切值法应用于土壤质量排序中，并提出了按密切值大小的突变进行分类的新方法。
- Then, using support vector machine classifier to conduct quality classification on speed ratio control valve. 然后，使用支持向量机分类器对速比控制阀进行质量分类。
- Objective: To study quality test,and establish quality classification standard of Platycodon grandiflorum. 目的:研究桔梗种子的检验方法和质量分级标准。
- Objective: To study seed quality test,and establish seed quality classification standard of Prunella vulgaris. 目的:研究夏枯草种子的检验方法和质量分级标准。
- Analysis on Land Use Change and Its Impact on Soil Quality in Fast Urbanization Region: Guangzhou as a Case Study. 快速城市化地区土地利用及其对土壤质量的影响。
- Indexing system and its quantitative expression for soil quality evaluation in Hainan island. 海南岛土壤质量的指标与量化表达研究。
- The development of soil protection strategies: does soil quality assessment help? 土壤质量评价在土壤保护策略发展过程中的作用?
- Timber yields vary according to the type of tree and the location and soil quality. 木材产量按树木的种类、生长位置及土质而变化。
- Quality Classification of Rock and Mineral and Determination of Stope Parameters for 10-6 Deposit, Song shujiao Mine, YTC. 云锡松矿10-6缓倾斜矿体岩矿质量分级及采场参数初定。
- Planted grassland, revegetated grassland, cropland and orchard had a soil quality of grade 4. 人工草地、撂荒地、农地和果园土壤质量属于4级。
- And a Taiwanese team is helping residents in Kiribati to better their lives by improving soil quality in the area. 台湾团正帮助吉里巴斯居民，改善当地的盐化土壤，让居民生活更好。欢迎收看今日的英语新闻，我是刘蕙萱，感恩您的加入。
- On the basis of these studies, the previous water quality objectives were revised in the early 1990s, linking water quality classification to specific health risks. 环保署根据研究成果,在1990年代初修订了早前沿用的水质指标,将水质的分级与游泳引致的疾病风险挂钩。
- Can resist droughts, preserve water and nutrition, improve soil quality, save water and fertilizer increase crop output. 能保水抗旱、提高水肥利用率、改良土壤、提高作物产量。
- In less than five years, the result will be spectacular and impossible to obtain without the extravagant soil quality we have here. 在不到五年的时间，结果将是壮观，也不可能获得的奢侈土壤质量我们这里有。
- The model with higher application value can be applied both in the quantitative analysis of storage reliability and in the quality classification of equipment. 该模型既可用于装备不工作状态可靠性的定量分析，又可用于装备的质量分级，具有较高的应用价值。
- Undergrowth, one important component of the forest ecosystem, plays an important role in maintaining the forest structure and soil quality. 林下植被作为森林生态系统的一个重要组成部分，对维持林分结构和土壤质量起着重要作用。
- Through changing the configuration of the earth's surface and debasing the soil quality,land has been badly damaged in underground mines. 通过改变地表形态和降低土壤质量,井工煤矿生产对土地产生比较严重破坏。
- Fuzzy mathematics describes the quality classification by subjection function, improves the weight set and obtains good result which is close to the reality. 模糊数学法用隶属函数描述水质分级界限，根据模糊聚类法确定因子权重，使评价结果更接近实际。
- However, the diagnosis using only chemical methods could not express and demonstrate the holistic characteristic of soil quality. 单纯依靠化学方法进行污染诊断,不能表征土壤环境的整体质量特征。
