求翻译：教师应根据实验课的要求，与实验员共同做好实验开出前的各项准备工作，预做实验，提前通知学生预习实验内容。提前一周将实验项目通知学生，实验前要事先预作（习），实验开始前检查学生的预习是否达到要求，检查合格方可做实验。实验进行时，教师必须在场巡视指导，要求学生按操作规程及安全规则进行实验。是什么意思？

Teachers should be based on the requirements of the experimental course and the lab assistant do all the preparatory work before the experiment out, pre-done experiment to inform students in advance preview experimental content. Experimental project to inform students a week in advance, before the e

According to the lab instructor should be the lesson for the experiment, and experiment to do a good job on the front of the preparation, pre-lab exercise, students advance to lab. One week in advance to notify a student pilot project, an experiment in advance prior to pre-made, lab (learning) prior

The teacher should act according to the experimental class the request, completes the experiment with the laboratory technician to start out front together each preparatory work, does the experiment in advance, informs the student to prepare a lesson ahead of time tests the content.A week will test

Teachers should be based on the requirements of the experimental course, together with the laboratory assistant ready to experiment before the departure of the work, do the experiment, notify the student in advance prepare experiment. Experimental project inform students a week in advance, before th