surfacing
鋪面
Sur·face v. t. [imp. & p. p. Surfaced p. pr. & vb. n. Surfacing ]
1. To give a surface to; especially, to cause to have a smooth or plain surface; to make smooth or plain.
2. To work over the surface or soil of, as ground, in hunting for gold.
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surfacing
n : emerging to the surface and becoming apparent