It is very stable, particularly in glazes with a low lead and boron content. 它的稳定性特佳,特别用在含低铅(LL)及硼的釉料中。
The next American will be low lead, even lead-free standards. 而明年美国将实行低铅(LL),甚至是无铅的标准。
Objective To determine if low lead exposure can influence auditory development in children. 目的探讨低水平铅暴露是否对儿童听觉发育产生影响。
Conclusion Low lead exposure could significantly damage the capacity of learning and this damages may be related with the contents of NO, MDA and activity of SOD in mice's brain. 结论长期低铅(LL)染毒对生长发育期小鼠学习能力有显著损伤,这种损伤可能与脑内NO含量、SOD活性下降、MDA含量升高有一定的相关性。
By calculating the actual values of lead output ratio in life span, recycling rate and emission ratio in this period, the reasons for low lead RE of China were distinguished as the bad lead recycling, severe lead emission and quick increase of lead annual output. 通过估算这一时期铅的循环率、排放率、生命周期产量比的实际数值,判定了中国铅的资源效率低下的原因:铅的循环状况较差,废铅排放严重,铅的年产量高速增长。