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。
In order to control the wind erosion, the measure to enlarge the stubble height and topsoil roughness is most effective.
结果表明：工件进给速度对表面粗糙度的影响最大，切削深度和刀具前角次之，工件硬度影响最小。
The results show that the effects on surface roughness are feed speed, depth of cutting , tool rake angle and parts hardness in turn.
利用风速廓线法测定小麦不同生长期的空气动力学粗糙度：青苗期的平均粗糙度最大，为6。
Using wind velocity profile law determinate the aerodynamic roughness length of wheats different growth periods: the average roughness of shooting period, is 6.
垫圈表面的标准光洁度最大为125- 200百万分之一英寸粗糙度。
Standard finish of gasket surface is 125-200 micro-inch maximum roughness.
插补运算的指标影响着工件的轮廓精度和表面粗糙度，并且影响机床的最大进给速度和生产效率，所以采用高效的插补算法和控制策略可提高加工精度和生产效率。
The indexes of interpolation operation affect not only the profile precision and surface roughness of the workpiece, but the maximal marching velocity and manufacture efficiency of the machine.
根据预测结果，在保证表面粗糙度要求的前提下，以最大加工速度为目标，用遗传算法实现加工参数的优化。
According to prediction and aimed at the fastest machining rate, machining parameters are optimized on the condition that parts' surface roughness is ensured.
根据预测结果，在保证表面粗糙度要求的前提下，以最大加工速度为目标，用遗传算法实现加工参数的优化。
According to prediction and aimed at the fastest machining rate, machining parameters are optimized on the condition that parts' surface roughness is ensured.
应用推荐