But after just 30 minutes of sifting through the garbage mountain, he struck lucky when he spotted a tiny glimmer surrounded by black sludge, wedged between two brown bags.
在垃圾堆里翻找了30分钟后，他非常幸运看到黑色淤渣里微微透出一丝闪光，戒指被夹在两只棕色袋子之间。
Black aerobic granule sludge with good settling velocities was cultivated in sequencing batch reactor (SBR) fed with sucrose.
以蔗糖为碳源，在序批式间歇反应器中培养出沉降性能良好的黑色好氧颗粒污泥。
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.
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。
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