包囊

They are usually well circumscribed, gray-white and cystic, with a medullary location, and are often surrounded by a rim of compressed fibrous tissue.

它们通常较局限，灰白色，囊性，主要发生在髓质，周围常包绕纤密的纤维组织。

Methods TAUS or TVUS was performed,at the same time,placing water bag in rectum in order to make the uterus,ovaries,and masses behind uterus well visualized.

经腹或经阴道超声扫查的同时，在直肠中加用水囊，使子宫、双卵巢及盆腔包块的形态、结构及其与周围组织的毗邻关系显示得更加清晰。

Ultrasonic imaging method combined with water bag in rectum is superior to that of only TAUS or TVUS in diagnosing and differentially diagnosing masses behind uterus,which has significant clinical value.

超声显像加用直肠水囊法对女性子宫后方包块的诊断和鉴别诊断方面明显优于单纯应用超声显像者，具有较高的临床价值。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。