Purging by raw nitrogen was carried out as an accident took place in the chrome-plating unit,which met the needs of production.
针对气体保护站制氮系统能力不足造成生产被动,不能满足镀锌机组事故情况下使用高纯氮气吹扫的问题进行了分析、试验,采取了镀锌机组事故情况下使用粗氮进行吹扫等措施,满足了生产要求。
Finally the seeds points are grown to the original size by conditional thickening and each region isn\'t joined respectively,thus the segmentation for a range image is completed.
首先用结构元素迭代腐蚀深度图像形成距离图像;然后根据距离图像计算极限腐蚀的集合,提取出目标的种子点;最后用条件粗化从种子点开始生长回到原尺寸但不使各区域相连,完成深度图像的分割。
Screening of a heterotrophic nitrifying bacterium strain and its optimal conditions for nitrogen removing;
一株异养硝化菌的筛选及其脱氮条件