通过试验研究了焊条药皮碱度对熔敷金属脱硫脱磷行为的影响.Effect of basicity of electrode coating on desulphidation and dephosphorization is studied.耐火材料的脱磷作用有利于提高钢水及钢材质量.Eliminating phosphorus from the fireproof material will improve the quality of ...
When his master's off traveling, Caleb stays with Pierre's parents.凯莱布在主人外出旅行时与皮埃尔的父母住在一起。We have a beautiful city and we pray it stays that way.我们的城市很美丽，但愿它能保持下去。She always stays cool, calm and collected in a ...