bus clip是什么意思

用法例句

Experiments on relation between Al s and inclusion content were carried out The range of appropriate Al s was observed When Al s content is 0 015 %～0 030 %,the total inclusion content can be controlled effectively and the cleanliness of the steel is improve

对 SKF精炼炉中 Als的含量与夹杂总量的关系进行了研究 ,确定了当 Als在 0 。