composite roughness的意思|示意

Results The surface roughness of the gradual composite materials was significantly higher than that of the control materials(P<0.01).

结果梯度复合材料的表面粗糙度明显高于对照材料（P＜0．01）；

The surface roughness and hydrophilicity of the PLLA-PDXB composite were obviously enhanced.

复合材料的亲水性和粗糙度明显增加。

Shanghai Composite Index is an important index for Chinese stock market, and we apply the Least Squares Method with roughness penalty to smooth its historical data, using spline functions.

上证综合指数是股票市场的一个重要指标，我们采用样条函数，将带光滑参数的最小二乘法应用于拟合该指标的历年数据。