coarse clay 中文意思是什麼
coarse clay
解釋
粗粘土-
Cizhou kiln was one of the popular civilian klins existing in areas of henan, hebei and shanxi provinces. as the clay body - of yellowish brown, red and grey - was coarse and loose, the cizhou kiln potters applied a layer of white slip on the surface and decorated the ware with carved, sgraffito and russet painted patterns before firing them in the kiln
磁州窯是一個極大的民體系散佈於河南河北山西等地，其胎土質地粗松顏色黃褐紅灰都有，所以磁州製品，多先以白色化妝土塗抹胎面，再用刻剔或鐵繪技法裝飾花紋，之後再上釉燒制。 -
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。 -
It was only common clay, coarse and heavy ; but it had high thoughts of its own value, and wonderful dreams of the great place which it was to fill in the world when the time came for its virtues to be discovered
說來也不過是普通的黏土，質地粗拙；但他對自己的價值卻抱有很高的看法，對它在世界上所可能佔有的地位具有奇妙的夢想，認為一旦時運到來，自己的美德終將為人發現。 -
Secondly, essential law of soil crust formation was obtained : when coarse sand exceeded 50 %, soil crust dominated by depositional crust would be formed. when soil clay exceeded 30 % and soil aggregated degree was less than 140 %, soil surface tended to form soil crust dominated by structural crust
四、土壤聚合劑聚丙烯酰胺（ pam ）對控製表土結皮形成的效果： pam能控製表土結皮形成的主要原因是， pam能改善土壤的結構狀況，顯著提高土壤團聚體的穩定性，從而有效的抑制了表土結皮的形成。 -
The research showed that pam could improve soil structure, and greatly increase the stabilization of soil aggregates, so soil crust development would be decreased. fifthly, soil grain that controls rainfall splash erosion was obtained, the influence of soil clay was very great during initial stages of rainfall. with rainfall going on, soil coarse sand and fine sand would control the splash erosion
五、控制土壤濺蝕的主要土壤粒級：在降雨初期土壤的的粘粒對濺蝕速率的影響較大，隨著降雨歷時的延長，土壤中的細砂和粗砂成為濺蝕速率影響較大的因子；六、對土壤濺蝕影響較大的土壤結構特徵因子：降雨5分鐘時，土壤的滲透系數對濺蝕速率的影響較大，隨著降雨的繼續進行，土壤的團聚度一直對土壤濺蝕速率影響較大。 -
4. in the process of spontaneous vegetation recovery of blown sand soil, coarse sands ( l - 0. 25mm ) content gradually lower, middle sands ( 0. 25 - 0. 05mm ) and fine sands ( 0. 05 - 0. 02mm ), silt, clay content gradually higher in mechanical composition
4 、在自然植被恢復過程中，風沙土機械組成中砂粒含量變化表現為粗砂含量的降低，中砂和細砂含量的升高，砂粒整體含量降低。
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