There are four methods for differentiating mushrooms

(1) From the color point of view, poisonous mushrooms are brightly colored, often appearing red and yellow, the center of the mushroom is in a protruding shape, the mushroom umbrella often has variegated spots, and the surface has filaments or small residues or scales; nontoxic mushrooms are generally The color is not bright, the mushroom cover is flat, and the umbrella surface is smooth.
(2) From the point of view of secretions, mushroom caps or wounded parts of toxic mushrooms often secrete viscous thick liquids, auburn milk, spicy and other odors, and the caps are easily torn after being torn; and non-toxic mushrooms are generally dry and broken. The liquid that is secreted is white, with a characteristic fragrance, and generally does not change color when the cap is torn.
(3) Poisonous mushrooms have mushroom stems, and they are easily broken. The lower part has mushroom holders. The roots produce cysts. The handles are difficult to tear; the non-toxic mushrooms have no mushroom wheels on their handles, and no mushroom holders on the lower part. The handle is easy to tear by hand.
(4) Chemical identification. Poisonous mushrooms were squeezed out of white milk, coated on white paper, and a drop of concentrated hydrochloric acid was added after drying. After 20 minutes, they turned blue or immediately turned red and turned blue after 30 minutes.

Dental Electric Wax Knife

The dental electric wax knife belongs to the field of medical tools, including a handle, a knife head connected with the handle, a power supply and a switch provided on the handle, and is characterized in that: the knife head has a hollow structure, and a wax storage part is provided in the knife head. The wax component includes a metal shell, a resistance wire wound on the outer wall of the metal shell and a wax block filled in the metal shell, the resistance wire is electrically connected to the power source, and a one-way air inlet valve is provided above the wax block, The one-way air inlet valve is fixed on the inner wall of the cutter head, the outer wall of the cutter head is provided with a soft button, the bottom of the metal shell is connected with a discharge pipe, and the discharge pipe penetrates the cutter head. The internal heating and storage of wax can conveniently adjust the state of wax droplets, so that the final wax extruded from the discharge tube is semi-solidified, which has good applicability, and there is no need to fetch wax back and forth, which greatly simplifies the clinical operation.

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