Introduction to acupuncture model
The human acupuncture model is made of bright-colored pvc plastic, marking the acupuncture points and extra-meridian points on the meridian line of the human body. The acupuncture points are located and approved by famous acupuncture experts and academicians of the Chinese Academy of Sciences according to relevant national standards. The human acupuncture model also belongs to the medical model.
How to observe the morphology of minerals in rock and mineral specimens?
Minerals in rock and mineral specimens have certain forms, and there are individual forms and aggregate forms. Therefore, when observing, we should first distinguish the individual or aggregate of minerals, and then further determine what form they belong to.
Collection and production of rock and mineral specimens
Collect rock and mineral specimens, check whether there are dangerous stones on the collection point, and whether they will fall down due to knocking and vibration, so as to avoid accidents. Great care should be taken when collecting perfectly crystalline or fragile mineral specimens.