pigging back是什么意思

用法例句

Determination of trace As,Sb,Bi,Sn and Pb in steel and pig iron by inductively coupled plasma-atomic emission spectrometry;

电感耦合等离子体原子发射光谱法测定碳钢及生铁中痕量砷锑铋锡铅

Influences of trace elements in pig iron on the morphology of compacted graphite;

生铁中微量元素对蠕虫状石墨形貌影响的分析

The Improvement of Determination of Ti in Pig Iron;

生铁中钛元素测定方法的改进

Reason analysis of unstable results for analysis of vanadium titanium cast iron sample by atomic emission spectrometry and improvement on sampling method;

钒钛生铁试样光谱分析结果不稳定的原因分析和取样方法的改进

Study on the sample of vanadium titanium cast iron for Atomic Emission Spectroscopy,The cause of analysis the result of analysis uncertainty through application modern statistics theory and evaluation of uncertainty with analysis of emission spectrometry vanadium in vanadium titanium cast iron.

采用原子发射光谱分析法测定钒钛生铁中钒含量,应用现代统计学理论对其分析结果不确定度的产生原因进行分析,同时对钒钛生铁中钒含量测定结果的不确定度进行了评定。

Study on the Middle Chromium White Cast Iron Using Vanadium Titanium Pig;

利用钒钛生铁生产中铬抗磨铸铁的试验研究