Considering the features of the construction of this line specific requirements are specified in the filling such as filling with fine earth, coarse mountain surface soil and graded crushed stones.
结合秦沈线施工特点，具体指出路基采用细粒土、粗粒山皮土和级配碎石几种具有代表性填料进行填筑的技术要求。
Instead of weekly graded assignments, this course offers on-line tutorial problems with answers that students can use to test their understanding of the lecture material.
本课程并没有每周批改的作业，取而代之的是线上的教学问题和解答，你可以利用它来测试你对课程内容的了解。
Instead of weekly graded assignments, this course offers on-line tutorial problems with answers that students can use to test their understanding of the lecture material.
本课程并没有每周批改的作业，取而代之的是线上的教学问题和解答，你可以利用它来测试你对课程内容的了解。
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