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mechanical composition meaning in English

机械成分
机械组成
力学构成

Examples

  1. There are higher potassium and calcium carbonate content , larger ph , lower organic matter , nitrogen and phosphoric . compared sandy soil with zonal soil , mechanical composition is coarsal , there are no substance leaching . 3
    土壤钾素、碳酸钙和ph值较高，有机质和氮、磷养分贫乏，风沙土与地带性土壤相比，机械组成明显粗化，物质未发生淋溶淀积。
  2. 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 、在自然植被恢复过程中，风沙土机械组成中砂粒含量变化表现为粗砂含量的降低，中砂和细砂含量的升高，砂粒整体含量降低。
  3. The results indicate that : 1 . the main physical and chemical characteristics vary regularly : with rising of the altitude , there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment , the content of organic carbon of epipedon is higher than 20 g / kg , while the content of organic carbon increases with increasing of altitude , and in the altitude of 3500 - 3700meters , the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction , the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated , indicating the soil leaching is strong , the ph and bs are distinct plus correlated ; the contents of sio2 , al2o3 , and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body , the content of sio2 is much high and cao is very little , the total contents of sio2 , a12o3 and fe2o3 occupy 92 % of the mineral parts , the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno
    研究结果表明： 1太白山南坡土壤的主要理化性质随海拔高度的上升呈有规律的变化：随海拔高度上升，机械组成由粉粒砂粒粘粒逐渐过渡到砂粒粉粒粘粒，海拔1600m以下出现粘化层；土壤有机质丰富，表层有机碳含量一般在20g kg以上，有机碳含量随海拔高度升高而相应增加，海拔3500 3700m的灌丛草甸植被下有机碳含量最高；土壤呈酸性或微酸性，并随海拔上升， ph值略微降低，酸性增强，海拔2700m以上的土壤多呈盐基不饱和状态，表明土壤淋溶作用较强， ph值和盐基饱和度呈极显著正相关；土体与粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相对比较稳定，土体中sio _ 2含量较高， cao含量较少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和约占土壤矿质部分的92 ，矿质元素含量的顺序依次为： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  4. With the demands of designing the large - scale cargo airplane , in this thesis , many technical materials about the mechanisms of current wing flap types , of foreign transport airplanes are carefully studied at first , and the mechanical composition of three - gaps - fowler - flap is summarized technically about its major basic components , prime mechanism ( track ) , driving device , sub - flaps mechanism and the sub - flaps sequential control system
    在本文中，针对大型运输机机翼设计的需求，首先对几种国外运输机襟翼运动机构的资料进行仔细研究，对三缝富勒襟翼运动机构的组成进行了分析，总结归纳出了三缝富勒襟翼运动机构的3个基本组成部分：主机构(轨道) ，驱动机构，子襟翼机构及子襟翼运动控制机构。

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