球磨矿渣水泥的强度比立磨的稍好。
And the cement strength for ball mill slag was little bette...
结果表明： 球磨机所加工的矿渣粉比立磨加工的矿渣粉颗粒尺寸分布宽、细颗粒含量高；
The results showed that the particle size distribution made by ball mill was wider and higher fine particle than LM;
迈特·鲁比诺夫管理的 I'm First 是一个非盈利组织，于去年10月成立，旨在为这一特定的学生群体提供帮助。
Matt Rubinoff directs I'm First, a nonprofit organization launched last October to reach out to this specific population of students.
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