teaching equipment: how should the biological microscope be kept? what are the precautions? next, lets take a look!1. the biological microscope should be placed in a dry and clean room. after use, put it back in the cabinet, or cover it with a glass cover or plastic cover, and put in a dry agent.2, do not disassem...

1. about the integrated controller the integrated controller has the main power supply, projector switch and signal switching system. when in use, please turn on the main power switch first, and then you can turn on the power of the equipment to be used.2. about the projector the projector is the most expensive eq...

teaching equipment is often used in many places nowadays. educational institutions, conference rooms, studios, etc. often use these equipment. since the application fields of teaching equipment are so extensive now, it must be protected. today, lets take a look at how often teaching equipment should be overhauled....

the passing years hurried east, and the days seemed to flow quietly, and the new year was standing at the starting point. on the first day of the new year, in the blessing of ten thousand voices, we are walking step by step towards us. dear friends, zhejiang yiheng teaching aids wish you a happy new year in the...

i have never been a gold armori have you ups and downsfortunately, in the past 2019,thank you for witnessing the growth of yihengin 2019, we work hard and live up to agein 2020, we will not forget our original intention and continue to work hard yiheng people grasped the precious time at the end of the year,ra...