... ash storage 灰槽 ash substance 似灰物质 ash sump 沉灰池 ...
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SEM photos showed that after adsorption of cadmium, a lot of particle or ash substance were deposited on the surface of chestnut inner shell.
SEM照片显示板栗内皮在吸附镉以后，表面聚集了众多的颗状物、粉状物；
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