为男性可控制的

There is also evidence that Selenium has a protective effect against some forms of cancer; including lung cancer, colorectal cancer, prostate cancer, liver cancer , breast cancer, and so on common cancer. The trace element selenium has been shown enhance male fertility; decrease cardiovascular disease mortality, and regulate the inflammatory mediators in asthma; Treatment of secondary lymphedema of the arm with physical decongestive therapy and sodium selenite.

有证据对多种癌症，如肺癌、结直肠癌、前列腺癌、肝癌和乳腺癌等有防护作用；硒增强男性生育力，降低心血管病死亡率，控制哮喘病炎症介体；亚硒酸钠治疗癌症病人由于肿瘤、淋巴结切除或放疗后引起上臂肢体近端继发性淋巴结水肿；补硒可增强泰素和阿霉素的疗效，此疗效比单用泰素和阿霉素为好。

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。