查询词典 tier

North Rhine-Westphalia's CDU-FDP government last year enacted a law requiring teachers in lower-tier schools to be trained to the same standard as Gymnasium teachers.

北莱茵-威斯特法伦州的基民盟和自民党政府去年颁布了一项法律要求在普通中学任教的教师必须接受与文理学校的教师相同的培训标准。

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。