这意味着它的预期是非常粗糙的边缘。
Which means it's expected to be very rough around the edges.
廉价刀片变得昂贵，长远来说，因为他们在切杆和粗糙的边缘效果。
Inexpensive blades become expensive in the long run because they result in chipping and rough edges.
尽管有些粗糙的边缘需要平整化，但是在此阶段结束前您应该拥有一个可以运行操作的系统。
By the end of the phase you should have an operational system, though some rough edges may remain to smooth out.
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