笨重的脚步声

I heard a clump on the stairs.

我听到楼梯上有笨重的脚步声。

Her sense of hearing, made unnaturally acute by excitement, told her that it was a man's footstep--told even more, that it was the tread of a gentleman; no slouching, lumbering pedestrian in hobnailed boots; but a gentleman who walked firmly and well.

她那被激动情绪弄得异乎寻常敏感的听觉告诉她：这是一个男人的脚步声——甚至还告诉她，这是一位绅士的脚步声；不是穿着平头顶靴子的、脚步懒散、笨重的乡村行人，而是稳步前进的绅士。

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。