The micronucleus test in Vicia faba root tip cell was uset to inspects the water quality of QY river in Wuhu city in this paper.The results show significant difference among 7 sections and the PI of sections 53-7 were...The micronucleus test in Vicia faba root tip cell was uset to inspects the water quality of QY river in Wuhu city in this paper.The results show significant difference among 7 sections and the PI of sections 53-7 were over 3.This suggests that the water quality of Qingyi river in Wuhu city was party polluted to different degrees.展开更多
以不锈钢轨道车辆电阻点焊熔核检测为例,分析了轨道车辆制造行业电阻点焊常用的JIS E 4048、EN15085、以及某项目指定使用的美国航空航天用电阻焊接规范AWS D17.2/D17.2M:2013对电阻点焊熔核尺寸的相关要求,并通过实例对比分析焊接缺陷...以不锈钢轨道车辆电阻点焊熔核检测为例,分析了轨道车辆制造行业电阻点焊常用的JIS E 4048、EN15085、以及某项目指定使用的美国航空航天用电阻焊接规范AWS D17.2/D17.2M:2013对电阻点焊熔核尺寸的相关要求,并通过实例对比分析焊接缺陷及熔核厚度。结果表明,美国AWS标准明显较其他标准要求更加严格。展开更多
文摘The micronucleus test in Vicia faba root tip cell was uset to inspects the water quality of QY river in Wuhu city in this paper.The results show significant difference among 7 sections and the PI of sections 53-7 were over 3.This suggests that the water quality of Qingyi river in Wuhu city was party polluted to different degrees.
文摘以不锈钢轨道车辆电阻点焊熔核检测为例,分析了轨道车辆制造行业电阻点焊常用的JIS E 4048、EN15085、以及某项目指定使用的美国航空航天用电阻焊接规范AWS D17.2/D17.2M:2013对电阻点焊熔核尺寸的相关要求,并通过实例对比分析焊接缺陷及熔核厚度。结果表明,美国AWS标准明显较其他标准要求更加严格。