His glides ended not with the usual feet-down splash into the sea, but with a long flat wake as he touched the surface with his feet tightly streamlined against his body.
他滑翔下来并不像一般鸟儿那样伸下双足溅落海中，而是蜷起双足紧贴着身体掠过海面,在水面留下长长一道波纹。
His glides ended not with the usual feet-down splash into the sea, but with a long flat wake as he touched the surface with his feet tightly streamlined against his body.
他滑翔下来并不像一般鸟儿那样伸下双足溅落海中，而是蜷起双足紧贴着身体掠过海面，在水面留下长长一道波纹。
Based on the characteristics of extrusion process, a new method of constructing surface for the streamlined extrusion die is proposed in this paper.
根据型材挤压的特点，提出了新的流线型挤压模曲面的构造方法。
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