n. 残瓦破片, 碎片

vt. 打碎, 弄碎

vi. 剥落, 裂开, 散裂

[机] 剥落

[ noun ]
a fragment broken off from the edge or face of stone or ore and having at least one thin edge
<noun.object>
a truck bearing a mound of blue spalls

Spall \Spall\, v. i.
To give off spalls, or wedge-shaped chips; -- said of stone,
as when badly set, with the weight thrown too much on the
outer surface.


Spall \Spall\, n. [OF. espaule; cf. It. spalla. See {Epaule}.]
The shoulder. [Obs.] --Spenser.


Spall \Spall\, n. [Prov. E. spall, spell. See {Spale}, {Spell} a
splinter.]
A chip or fragment, especially a chip of stone as struck off
the block by the hammer, having at least one feather-edge.


Spall \Spall\, v. t.
1. (Mining) To break into small pieces, as ore, for the
purpose of separating from rock. --Pryce.

2. (Masonry) To reduce, as irregular blocks of stone, to an
approximately level surface by hammering.