n.涂黑;烧黑;变黑;炭粉;黑度
动词blacken的现在分词形式.
Hellish flames billowed upward, blackening the groaning roofbeams. 地狱般的火焰向上翻滚着巨浪,烧黑了房梁,发出嘎吱声。
The output signal from the detector may be the blackening of a photographic emulsion. 探测器的输出信号可以是照相乳胶的黑度。