粒子保护 meaning in Chinese

alpha particle protection

In doing so , the utilization rate of carbon is increased and the melting speed of protection slag is decreased . the application result indicated that : using superfine composite particles , only 0 . 3 % of carbon is needed , while carbon in traditional particles would up to 2 % . hence , the adding of superfine composite powder can avoid the increasing of carbon in steel slag
应用单位实验表明：在不影响保护渣整体性能的前提下，使用超细复合粒子保护渣，降低熔速的外摘要博士学位论文加中超碳黑的量可大幅度减少，仅需0 . 3 % ，而使用传统方法制备的保护渣外加中超碳黑量不低于2 % 。