这正是初春的时候，番红花和雪形花正在盛开。
It was in the early spring, when the crocus and the snowdrop were in full bloom.
雪以六角形晶体的形式落下，但一旦落到地面，雪很快就会变成一团更小、更圆的颗粒。
Snow falls as hexagonal crystals, but once on the ground, snow is soon transformed into a compacted mass of smaller, rounded grains.
本文在切比雪夫曲线拟合方法的基础上，提出了一种高次曲线磨耗形踏面的设计方法。
On the basis of Chebyshev curve fitting method, a new method to design worn profile tread is proposed by this paper.
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