Effect of basicity of electrode coating on desulphidation and dephosphorization is studied.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.The experiments of dephosphorization of hot metal by using converter slagflux were performed in the s...
The sailors called the land men landlubbers in scorn.水手们轻蔑地把那些住在陆地上的人叫做旱鸭子.Underwater photography, however, has brought the wondrous world of the deep closer to the'landlubbers '.然而, 水下摄影帮助那些无法潜入深海的人获得接近水下奇妙世界的...