首先被磨平的区域会集中在第一个凹槽,而同时第二层凹槽又抵消了剥削的力。
The wear flat tends to stay within the area of the first chamfer, with the second chamfer providing extended protection against chipping and spalling.
但凡少年,除却顽劣的脾性,没被世俗磨平的棱角,还有一点,即那分明的爱憎。不明所以又理所当然的爱憎。
Every child, besides some tough temper, some rough edges just not be smoothed by secularity, there is another thing, namely, the kind of clear-cut love and hate which had no reason and so happened.
时代转变体现在细节上,比如,一面能清晰反映人们面容的镜子,过去日本人只能使用磨平的铜镜,而那个时代已经逝去。
For example, everyone was fascinated by the new glass mirrors that showed their faces so clearly; before then, the Japanese used only dim bronze.
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