那些沿着湄公河顺流而下的支持了两岸农业长达几个世纪的肥沃淤泥沉淀物将会锐减。
The flows of fertile sediment that have for centuries sustained farmers along the Mekong's banks will diminish.
原料为污水处理沉淀物，黄河淤泥，煤矸石、工业炉渣的一种或组合。
Raw material is sediment of wastewater treatment, namely sludge of the Yellow, one or combination of coal gangue and industrial slag.
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