natural alkali 中文意思是什麼

natural alkali 解釋
天然堿
  • natural : adj 1 自然界的;關于自然界的。2 天然的;未開墾的;野生的。3 固有的 生來的 天賦的(opp acquired)...
  • alkali : n. (pl. alkali(e)s) 【化學】堿;強堿。
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. Based on the principle of significant effect of soil fertility factors on forest growth, soil physical factors ( natural water content, bulk density, total porosity, capillary porosity, aggregate degree, coarse silt and physical clay ), chemical factors ( om. total n, alkali - hytrolyzable n, total p, humus and ha / fa ) and biological factors ( urease, acidphosphotase, invertase and microbes ) were selected as evaluation index system of soil fertility. applying principal component analysis, soil ifi of subalpine coniferous forest was calculated

    從土壤物理、化學、生物學三方面出發,建立了川西亞高山針葉林不同演替階段土壤肥力評價指標體系,應用主成分分析,計算出不同演替階段土壤肥力綜合指標值( ifi ) ,各演替階段大小順序為: 10年生雲杉林地跡地原始林地次生樺木林地30年生雲杉林地20年生雲杉林地50年生雲杉林地60年生雲杉林地40年生雲杉林地。
  3. Qingzhou hengtai micro _ powder co. ltd uses the local rich dry fruit resources - walnut the outer covering, passed through a special system grain of craft, the research develops haspolished the special - purpose walnut shell powder product, natural didnot have the pollution, the chemical stability strongly by it, bearsthe acid and alkali, bears the pressure is high, does not contain the virulentobjectionable constituents, has uniquely escapes the dirt ability, thegranularity collection medium fine characteristic, caused the overseasmerchant highly to take, already the batch exported south korea

    青州市恆泰微粉有限公司利用當地豐富的乾果資源?核桃的外殼,經過特殊的制粒工藝,研究開發出了拋光專用核桃殼粉產品,以其天然無污染、化學穩定性強、耐酸堿、抗壓力高、不含有毒有害成份、有獨特的脫污能力、粒度集中等優良特性,引起了國外客商的高度重視,現已批量出口韓國。
  4. When bamboo is processed according to the hydrolyzed alkali method and bleached repeatedly, it becomes the bamboo plasma, which is further processed into bamboo fiber. this thread contains no additives and is natural and ecological in the real sense

    經水解堿法及多次漂白精製而成竹漿粕,再由化纖廠加工製成竹制纖維,不含化學添加劑,是一種真正意義上的純天然綠色環保纖維。
  5. Its effects of anti - stain treatment after dilute alkali solution immerse can be markedly increased, wood natural color lasts longer than the original ones, the color value still can reach a standard in export after aging for six months in air

    稀堿液處理后再進行防變色處理,防變色效果顯著提高,木材的天然色澤保持時間持久,大氣老化半年後,色澤指標仍能達到外貿出口a級板標準。
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