...肝炎差异是显著的，电镜检查可见：肝细胞内可见较多的形态各异，大小不一，密度不均的高电子密度物质(electron dense material，EDM)，Kupffer细胞质内亦可见有EDM，有些毛细胆管附近细胞膜连接破坏，使细胞间隙局限性不规则扩大，...
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在土壤干旱胁迫下，叶绿体的片层结构发生严重的扭曲并在中央部分形成电子密度较高的黑色团块物质。
Under soil drought stress lamella structure of chloroplast wrenched obviously and there was a black area, which had high electron density in the middle of chloroplast.
核物质高度浓缩，电子密度高而均匀。
The contents in the nucleus are highly dense, and the electron density is homogeneous.
在染色体横切面中，可见染色体中央有一低电子密度的无染色质区，该区内有大量RNP物质。
The central axial area of each chromatid is a low electronic density region or chromatin free compartment, in which there are lots of RNP.
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