求翻译：此外，课堂教学中，由于班级过大，教师声音、教师位置、黑板、投影、录音机的使用效果明显受影响，师生交流频率也无法加快，互相碰撞也难以增多，不利于激发教师的灵感和机智，发挥教师教学的个性特长，教师和学生之间的交流、信息反馈也受到局限，教师不容易敏锐洞察学生的个体差异，因材施教也就成为一句空话，受教育机会均等也将名不符实。是什么意思？

In addition, classroom teaching, the class is too large, the voice of teachers, the position of teachers, blackboards, projectors, tape recorders use effects significantly affected the frequency of teacher-student interaction can not accelerate, and collide with each other is difficult to increase,

In addition, classroom teaching, the class teacher, too much sound, teacher position, blackboard, and use of the projector, tape recorders is affected, the students and teachers exchange frequency is also not be able to accelerate and collide with one another, it is difficult to grow, to the detrime

Also, class teaching in the, due to class had large, teachers sound, and teachers location, and Blackboard, and projection, and recorder of using effect clear by effect, teachers and students AC frequency also cannot speed up, each other collision also difficult to increased, does not conducive to f