繁體版 English
登录 注册
网站工具

机械组成的英文

发音:  
"机械组成"怎么读用"机械组成"造句

英文翻译手机手机版

  • mechanical composition

例句与用法

  • The study of analyzing the mechanical of aeolian sandy soil using straw based on experiment
    应用吸管法进行风沙土机械组成分析的实验研究
  • Correlation analysis between black soil textures and total carbon , nitrogen , phosphorus , kalium contents in shuangcheng cropland
    双城市农田黑土机械组成与土壤全碳和全氮磷钾养分含量的相关性分析
  • As for h2 and h3 derived from quaternary deposits , the textures of soils would become heavy because of soil erosion , whereas t2 and t3 of red soil of granite became sandification
    土壤侵蚀会引起土壤机械组成的改变。对于第四纪粘土发育的红壤，土壤质地粘重，而花岗岩红壤，侵蚀使其趋向砂质化。
  • 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。
  • 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。
  • In the long run , the economy beneficial of grassland claim is lower . the soil nutrition lose , mechanic compose become crude , vegetation restore is slow , the drought resisted ability is poor . therefore , it is not worth to claim grassland both from economy and ecology point of view
    长远来看，草地开垦经济效益低下，撂荒后又面临土壤养分流失、机械组成粗化、植被恢复缓慢、抗干扰能力弱等诸多生态问题，因此，无论从经济学还是生态学角度，开垦草地得不偿失。
  • The soil physical composition , organic matter , total nitrogen , total phosphorus , total potassium and ph of salix psammophila ccheckerboard and contrast sand of dalate county were investigated in 2005 , the effects of salix psammophila checkerboard on physical and chemical characteristics of sandy soil were analyzed
    摘要本试验于2005年在达拉特旗测定了设置沙柳沙障的沙丘和对照样地（未设沙障）的土壤机械组成、有机质、全氮、全磷、全钾、酸碱度等理化指标，对比分析沙柳沙障对土壤理化性质的影响。
  • The organic matter , total n , hydrolytic n were increased , then reduced with the increase of abandoned time . the loss of organic c got up to 59 . 4 % in abandoned land . in 0 - 20cm , the sand content of 0 . 25 - 0 . 05mm was increased gradually , the average content of sand in the abandoned land was up to 76 . 84 % , the sand contents of silt and sand was gradually reduced , the soil mechanic compose became coarse
    随撂荒年限的增加，土壤有机质、全氮、碱解氮等主要养分均表现出先降低后增加的趋势；撂荒地有机碳的损失平均达到59 . 4 ；在撂荒地表面0 - 20cm范围内， 0 . 25 - 0 . 05mm粒径的砂粒含量逐渐增加，各撂荒地砂粒平均含量达76 . 84 ，粉粒和粘粒含量逐渐降低，土壤机械组成出现粗化现象。
  • 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 。
  • The function of desert microbiotic crusts in erdos was analyzed , the results ahowed that : microbiotic crusts consist of fine sand and thick powder sand , but differs with the wind - drift sand , wind - drift sand are coarse sand and fine sand ; microbiotic crusts influence the rainfall distribution again and effect on the evaporation of infiltration moisture ; microbiotic crusts has the power of water conservation and the function of enrichment of nutrients
    摘要本文对鄂尔多斯沙漠生物结皮作用进行了初步研究，结果表明结皮层的机械组成以细沙和粗粉沙为主，而流沙以粗沙和细沙为主；生物结皮层影响降水的再分配作用，并影响入渗水的蒸发规律；生物结皮层县有较好的保水特性和养分富集作用。
用"机械组成"造句  

精彩推荐

适合英语口语练习的美剧

看美国人如何教育孩子的？ （双语）

我们的家长, 你为什么那么焦虑? （双语）

机械组成的英文翻译，机械组成英文怎么说，怎么用英语翻译机械组成，机械组成的英文意思，機械組成的英文，机械组成 meaning in English，機械組成的英文，机械组成怎么读，发音，例句，用法和解释由查查在线词典提供，版权所有违者必究。
英语→汉语 汉语→英语