huī chén ㄏㄨㄟ ㄔㄣˊ 灰沉 犹灰灭。 三国 魏 嵇康 《太师箴》：“故君位益侈，臣路生心。竭智谋国，不吝灰沉。” 戴明扬 校注：“灰沉，灰身沉身也。”
烟灰沉积 soot deposit
石灰沉淀 lime precipitation ; calcareous deposit ; Lime-sedimentation
飞灰沉降器 fly ash settler
灰沉空卫 Somber Hoverguard
火山灰沉积岩 pozzuolana sedimentary soil
沉默之灰 Muted Grays
羟磷灰石沉着病 Hydroxyapatite deposition disease
石灰沉淀法 lime precipitation process
沉降灰 fallout ; saltation ash
灰沉积机理 ash deposition mechanism
仲夏夜，体育馆里举行了摇滚演唱会。雨雪让夏夜里的天空灰沉。他的出现赢得了人群的喝彩声。
At a rock concert in a sports hall on mid-summer eve, as sleet and snowfall and the midnight sky hangs grey, his appearances draws cheers from the crowd.
介绍了硫化钡黑灰的浸取、黄水(硫化钡溶液)的沉清和污泥处理工艺和设备改进。
The dipping of barium sulphide - black ash, the setting of yellow water (barium sulphide solution) and the treating technology of sludge and the remaking of equipment are introduced.
或者，即使它们唱，声调那么沉，树叶全变灰了，生怕冬天降临。
Or if they sing, 'tis with so dull a cheer, That leaves look pale, dreading the winter's near.
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