1. Library benefit has the characteristics of intangibility, indirectness, in perceptibility, radiability, waviness and vagueness. 它具有无形性、间接性、潜移性、辐射性、波动性和模糊性等特征。
2. Mathematic model and general numerical solutions of Newtonian transient elastohydrodynamic lubrication(EHL)of point contacts with surface waviness were developed. 对具有波动表面的弹流润滑问题建立了数学模型，得到一种普遍的波动表面的点接触非稳态弹流数值算法。
3. The confirmation results show that the surface roughness and surface waviness were significantly improved by the optimum design predicted by the Taguchi-PCA method. 验证结果显示，本研究所得到的切削参数最佳水准组合，确实能够同时有效改善加工件之表面粗糙度与表面波纹。
英英解释
n.
1. of hair: a tendency to curl
2. unevenness produced by waves or wrinkles
