1) molten lead
铅熔体
1.
The dezincing limit from molten lead by vacuum refining process is studied by theoretic analysis and experiments.
对铅熔体真空脱锌限度问题进行理论分析和实验验证。
2) Lead-melting
熔铅
1.
In the article the treating scheme of the smoke and dust problems in Lead-melting was brought out which had gotten good effect,the feature of the scheme was described.
文章介绍了铅冶炼熔铅岗位存在的问题、治理方案、方案特点及治理效果。
3) lead-free frit
无铅熔块
1.
The effects of nano-sized Al2O3,ZnO,CeO2,ZrO2 on the performances of lead-free frit, suchas the flexural strength, HV500 hardness and chemical stability, had been studied using orthogonal methodin this paper.
结果表明:外加纳米氧化铝等可使无铅熔块抗弯强度提高30%,化学稳定性提高60%～80%,硬度提高10%左右。
4) molten Pb target
熔化铅靶
1.
The Hg isotopes produced from the reaction of 600 MeV 18 O beam bombarding on molten Pb target diffuse through transport tube into the FEBIAD ion source of the on line isotope separator at Lanzhou,and collected and transported by a tape transport system.
将熔化铅靶技术应用于在线同位素分离器。
5) lead melt
熔铅炉
1.
Application of FX-280MR PLC in automatic ingredient-mixing production line of lead melter;
FX2-80MR PLC在熔铅炉自动配料生产线中应用
6) low-melting point lead
低熔点铅
1.
It is measured that the thickness of low-melting point lead is 6 cm for 60Coy-ray,is 8 cm for 6 MV and 15 MV X-ray when transmision rate is lower 5%.
本文论述了适形制模的概念、适形制模的方法、适形制模的要求及适形制模在放射治疗工作中的意义;实验求证了在透射率小于5％时适形模低熔点铅的厚度,对60Coγ射线而言,厚度只需6cm,而6MVX和15MV X则需要8cm。
补充资料：铅-铅测年
分子式：
CAS号：
性质：238U和235U两个母体铀同位素的特性实质相同，所产生的放射性成因206,207Pb的方程可合并为（207Pb/206Pb）=[(235U/238U)]（t-1）。235U/238U现在的比值是1/137.8，利用非放射性成因‘稳定’204Pb作为参考同位素，作（207Pb/204Pb）与（206Pb/204Pb）的Pb-Pb等时线，应用方程计算年龄，式中（207Pb/204Pb）和(206Pb/204Pb)0是初始比值。
CAS号：
性质：238U和235U两个母体铀同位素的特性实质相同，所产生的放射性成因206,207Pb的方程可合并为（207Pb/206Pb）=[(235U/238U)]（t-1）。235U/238U现在的比值是1/137.8，利用非放射性成因‘稳定’204Pb作为参考同位素，作（207Pb/204Pb）与（206Pb/204Pb）的Pb-Pb等时线，应用方程计算年龄，式中（207Pb/204Pb）和(206Pb/204Pb)0是初始比值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条