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1.This insulation course is designed to improve students' understanding of electrical safety.
这个绝缘课程旨在提高学生对电气安全的理解。
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2.The insulation course covers various topics related to electrical engineering.
绝缘课程涵盖了与电气工程相关的各种主题。
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3. Students are required to complete the insulation course before they can graduate.
学生必须在毕业前完成绝缘课程。