Bulk densities of mixture of wheat stalk powder and ceramic micro-beads with various ratios were measured by experiment for designing biomass pyrolysis equipment.

测定了不同混合比例的陶瓷颗粒和小麦秸秆粉混合物含气堆密度、填充堆密度。

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Methods To determine the maximum dose of adjuvant, select formula, prepare powder, and detect hygroscopicity, Angle of repose and bulk density.

方法确定加入辅料最大量，选择处方，制备药粉，测定吸湿量百分率、休止角、堆密度。

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Vermiculite adding can compensate for part of the ceramic volume contraction, improve shapes and structure of pore, improve porosity, lower bulk density and improve the rate of powder resistance.

蛭石的添加，可以补偿部分陶粒体积收缩，且能改善陶粒孔型和结构，提高显气孔率，降低体积密度，提高陶粒抗粉化率。

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"I want to gather information... over the bulk buying and trade in the Netherlands in order to inform Chinese authorities that they are getting batches of milk powder that do not conform to their regulations, " Deputy Economic Affairs Minister Sharon Dijksma said in a statement.

BBC: Dutch government to probe export of milk formula to China