它的基质很少，多含有呈长梭形的、电子密度非常低的淀粉粒，并有一些电子密度较高的条带结构。
The amyloplast usually possessed a larger, very low electron density starch grain which mainly was long shuttle and there were some higher electron density partition or wedge structure in it.
试验结果表明，不仅干密度影响动强度，粘粒含量和粉粒含量变化对动强度影响也较大。
It is proved that not only dry density but also the particle content change of clay content and silt content affect liquefaction strength.
对于一定粒度的碳化硅粉而言，加入到生坯中碳粉粒度应小于一定尺寸，否则，陶瓷的断裂强度和密度将随碳粉粒度的增大而降低。
For the green body containing a certain size of SiC powders, the carbon particle should be less than a certain size, or else, the density and fracture strength of RBSC decrease wit...
结果表明，初始钨粉粒径越小，制备得到钨块的密度越小，晶粒平均直径也越小；
The results show that the smaller the particle size of tungsten powders, the lower the density and the smaller the grain size of the sintered tungsten block.
结果表明，初始钨粉粒径越小，制备得到钨块的密度越小，晶粒平均直径也越小；
The results show that the smaller the particle size of tungsten powders, the lower the density and the smaller the grain size of the sintered tungsten block.
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