1) Soil mechanical resistance
土壤机械阻力
1.
Effects of soil mechanical resistance on root growth characteristics of kentucky turfgrass(Poa pratensis L.)
土壤机械阻力对草地早熟禾根系生长的影响
2.
Soil mechanical resistance is an important mechanical property of soil, we should appreciate researches on its measurement and application.
设计了一个土壤机械阻力连续测定系统。
3.
Hence, the concept of soil mechanical resistance is discriminated.
为此,辨析了土壤机械阻力的概念,概述了土壤机械阻力的4种测定方法及其研究状况,总结了土壤机械阻力值的一些初步应用。
2) Soil resistance
土壤阻力
1.
Development of continuous measurement system for soil resistance
土壤阻力连续测试设备研制
3) mechanical resistance
机械阻力
1.
Effect of soil mechanical resistance on hydraulic conductivity of maize root;
土壤机械阻力对玉米根系导水率的影响
4) soil mechanical composition
土壤机械组成
1.
Taking southeastern margin of Tengger Desert and Southwestern margin of Mu Us Sandland for example,the authors study the dynamic change of soil mechanical composition and soil nutrient of lands with different desertification degrees during the recovering process.
以毛乌素沙地西南缘的盐池县沙边子及位于腾格里沙漠东南缘的沙坡头地区为例,研究了该地区不同程度沙漠化土地恢复过程中土壤机械组成及土壤养分的动态变化。
2.
Through collecting samples of 0-20cm surface soil in Dezhou by laser particle sizer,the soil mechanical composition test was taken.
土壤机械组成是土壤最基本的参数之一。
3.
The soil mechanical composition and soil nutrient can be ameliorated by enclosure and shelter belt,and the average percentage composition of fine sand,sand clay and physical clay have been increased respectively 4.
结果表明,封育和防护林带可以显著地改善沙化草场土壤机械组成,提高土壤养分含量,其中细沙、粗粉沙和物理黏粒的平均百分含量较未封育沙化草场分别增加了4。
5) soil wedge resistance
土壤楔入阻力
1.
With the application of type TJ-75 Soil Hardness instrument to determine the soil wedge resistance of salt field, discuss the mutrual relationship between soil wedge resistance,physical index and mechanical character.
用ＴＪ－７５型土壤坚实度仪测量了盐田楔入阻力，讨论了土壤楔入阻力与物理指标和力学性质的相互关系。
6) Soil sliding resistance
土壤滑动阻力
补充资料：肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄，分支短而管径大，故肺动脉的可扩性较大，对血流的阻力很小，仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等，故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条