常見例句雙語例句It is presented that the more the surface of the progressive lens becomes closer to spherical by the process of mean curvature flow, the more the astigmatism is smaller.采用平均曲率流方法使鏡片漸進(jìn)表面上符合設(shè)定條件的區(qū)域更加趨近于球面,從而減小鏡片表面該區(qū)域處的像散。Geometric data of ellipse in hyperbolic space are considered, such as perimeter and mean absolute curvature.在雙曲空間中,對橢圓的周長及平均絕對曲率做出細(xì)致考察。The effects of pressure gradient and streamline curvature on the distributions of mean velocity and turbulent values are discussed in this paper.討論了壓強(qiáng)梯度和流線曲率對壁面律、尾流律以及湍流應(yīng)力和混合長分布的影響。 返回 mean curvature