low density

Aerogel is a kind of low density porotic material which has many special physical and chemical properties.

气凝胶是一类具有许多独特物理、化学性多孔材料，在众多领中具有应用或潜在应用价值。

Objective To investigate the effects of micronized fenofibrate on low density lipoprotein (LDL) subfraction profiles in type IV hyperlipidemic subjects.

目观察微粒化非诺贝特对IV型高脂血症患者血清低密脂蛋白（LDL）亚组份再分布作用。

RESULTS The CTfeathures of ossifying fibroma inparanasal sinus were similar torotundity or unregular single high density lump in sinus, partarea of low density, integrity bone involucrum around it.

结果鼻窦骨化纤维瘤CT表现为鼻窦内单发类圆形或不规则性高密肿块,部分区低密影,其周边出现完整骨性包壳,呈膨胀性生长,周边组织受压变形但分界清楚。

Hematoma under envelop of liver and spleen: 15 cases represented same or low density lunular focuses lying the edge of liver and spleen, some fresh hematoma represented high density.

肝脾包膜下血肿表现为肝脾缘等或低密新月形灶15例，部分新鲜血肿为高密灶。

As for the lung glandular cancer, the metastatic tumor to the brain shows a low density and sack-like low density under flat scanning.There is no obvious reinforcement and relatively slight hydroncus.

肺腺癌脑转移瘤平扫表现为低密及囊状低密,强化不明显,水肿相对较.