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1·The bed roughness height was expressed by the corrective height of vegetations, and the non-uniformity roughness was expressed by the variance of the height.

以植物高度表示有植物床面的粗糙突起程度，以高度的方差表示粗糙度的非均匀性。

2·For influence factors and rules of machined surface roughness, we studied on the influence factors of machined surface roughness such as scallop-height, path interval, feed rate and optimum tool path.

在表面粗糙度的影响因素和影响规律方面：主要研究了残留面积高度、走刀行距、每齿进给率和最优化走刀路径对零件加工表面粗糙度的影响。

3·The change in the specific roll pressure of workblanks is investigated as the tool surface roughness and the relative height of workblanks are changed.

探讨了具有不同表面粗糙度的工具和相对高度毛坯，在变形时单位压力的变化情况；

4·In addition, the height, density and perpendicularity of remnant stubble, straws and grass had influence on aerodynamic roughness and wind velocity fluctuation on different underlying surfaces.

此外，作物残茬、秸秆和牧草等粗糙元的高度、密度及直立性均对下垫面的空气动力学粗糙度、摩阻速度及风速脉动有一定影响。

5·The datum line and mainly three profile height parameters of surface roughness are briefly introduced and the operation principle and system structure of AFM.

简要介绍了评定表面粗糙度参数的基准线及其主要的两个轮廓高度评定参数，详细阐述了重庆大学研制成功的一种高精度原子力显微镜——AFM。

6·In order to control the wind erosion, the measure to enlarge the stubble height and topsoil roughness is most effective.

为了有效防治农田土壤风蚀，对作物进行高留茬处理和通过各种措施增加地表粗糙度，可以达到最大的防风蚀作用。

7·Vegetation characteristics, such as height, density, coverage, lateral coverage of vegetation are closely related to the aerodynamic roughness length.

植被高度、密度、覆盖度、侧影盖度等特征，通过影响下垫面空气动力学粗糙度来达到抑制风蚀的效果。

8·Plant coverage is pacing factor for influencing roughness(z0), also height and density of plant have significant positive correlation.

粗糙度主要受群落盖度影响，并与群落密度、高度也呈显著正相关。