1) flint glass
含铅玻璃
2) lead-contained
含铅
1.
In ink jet printing, lead based pigments and lead-contained drying agents are used; lead compounds are used as stabilizing agent in PVC coating; and lead contained attachments or decorations may be used for garments; and all these may lead to the content of lead exceeding the criteria, which should arouse people s attention.
纺织品中含铅的主要原因是采用含铅染化料、助剂和附件饰品,美国和欧洲法律与标准中对纺织品含铅均有明确的限量要求,我国个别企业的油墨印花中采用的铅系颜料和含铅干燥剂、PVC涂层采用铅作稳定剂、服装加工时采用含铅金属附件或饰品等,容易导致纺织品含铅超标,形成铅暴露和危害,部分出口纺织品被召回,含铅纺织品问题日益得到人们的关注。
3) lead content
含铅量
4) lead contained in slag
渣含铅
5) lead-containing wastewater
含铅废水
1.
Treatment of acidic lead-containing wastewater by depositing together with barium salt;
钡盐共沉法处理酸性含铅废水
2.
This experimental conditions and effects of bamboo carbon for commercial use and modified bamboo carbon on adsorption treatment for lead-containing wastewater were studied.
研究了商用竹炭和改性竹炭对含铅废水的吸附处理的实验条件及效果。
6) solder containing Pb
含铅焊料
参考词条
补充资料:铅玻璃
铅玻璃 lead glass 含氧化铅的玻璃。包括铅晶质玻璃、火石类光学玻璃、防辐射玻璃、低熔玻璃、延迟线玻璃、高折射微珠玻璃等。铅玻璃的组成式为:RmOn-PbO-SiO2(B2O3)。式中SiO2(B2O3),即氧化硅(氧化硼),称网络形成物,是构成玻璃网络结构的基本单元。RmOn,代表碱、碱土、稀土金属的金属氧化物,是使玻璃网络结构发生变化、达到调整特性的网络修改物。PbO,即氧化铅,为特征成分,赋予玻璃基本特性。随PbO含量的增加,玻璃的密度、折射率、色散、介电常数、对X射线和γ射线吸收系数等性能指标值增加;其硬度、高温粘度、软化温度、化学稳定性等指标值降低;致使玻璃成型料性变长、着色剂色彩鲜艳、表面光泽增加、敲击声清脆。 中国早在战国时期即有铅玻璃制品。17世纪后半叶,英国制出铅晶质玻璃艺术器皿。后来广泛用于制造光学仪器、艺术器皿和用作防辐射玻璃等。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。