1) Select the appropriate mask size for the patient; 2) Take out the Silicone Anesthesia Mask from the package, align the bottom of the Mask at the back of the patient's lower lip, and gently button down the Silicone Anesthesia Mask to cover the patient's mouth and nose; 3) Buckle the mask with the thumb, index finger and middle finger, and lift the chin of the patient with the remaining fingers if necessary; ...

How can white things appear on the disposable finger gloves vendor? Where did it come from? Today, take you to solve this mystery ~ Generally speaking, the appearance of white material, there are two main conditions, caused by different reasons. One is the white stripe, which is caused by uneven mixing of raw materials in the production process. Although it will make the gloves look ugly, it will not affect the normal use. There is also a case of white particles, which is related to the co...

The manufacturing cost of high vacuum fuel extractor is relatively low, but it is a dust removal method for dust with moisture, viscosity and pungent smell generated in chemical industry, paint spraying, glaze spraying, pigment and other industries. Because it can not only remove dust, but also use water to remove some peculiar smell. If it is harmful gas (such as a small amount of sulfur dioxide, hydrochloric acid fog, etc.), it can be absorbed by preparing absorbent in the washing liquid. ...

reasons for common failures of tuya led panel lights What is the formula for calculating the value? A: According to the spectral radiation flux Φ (λ), the luminous flux formula is obtained: Phi =Km■ Phi (lambda) gV (lambda) dlambda ...

introduction to the working principle of the dust collector is a filter type dust removal equipment based on the filter principle, using organic fiber or inorganic fiber filter cloth to filter out the dust in the gas. ⑴ Gravity sedimentation - When dusty gas enters the introduction to the working principle of the dust collector, the dust with large particles and a large ratio settles down under the action of gravity, which is the same as the effect of the sedimentation chamber. (2) Thermal...

china hexamethylcyclotrisiloxane supplier is a very important organic chemical raw materials, the synthesis process from benzene began to undergo nitrification, Reduction, protection, bromination, deprotection and other steps. This synthesis starts from nitrobenzene, using tin hydrochloric acid to reduce the nitro group to obtain aniline, aniline is easy to acylate to protect the amino group, and then according to the rules of electrophilic substitution of bromo-acetanilide in acidic conditio...

High Vacuum Central Dust Collection System has the advantages of high resistance and energy saving and other advantages because of its high dust removal efficiency. Therefore, the size of the filtering wind speed and the concentration of the imports are relatively large, and the ability of the entire disposal is relatively strong, so it has a wide range of adaptability. Because the life of High Vacuum Central Dust Collection System is relatively long, and costs and maintenance costs are relat...

The design of microfiber jewelry bag to protect jewelry box manufacturer is very important. Generally, high-quality product design and packaging design can better design a unified gift package that is more practical for consumption and quantitative for production in communication. A lot of product packaging is simplified, but there is a lack of creativity. The design of microfiber jewelry bag to protect jewelry box manufacturer is based on the starting point of creativity and thinking. Genera...

Directional Coupler DIN-Female The Directional Coupler Din-female is a four-port component with directional transmission. It consists of two pairs of transmission systems connected by coupling devices. This section describes the Directional Coupler DIN-Female performance indicators. Then introduce the waveguide double-hole Directional Coupler DIN-Female, double-branch Directional Coupler DIN-Female and parallel coupled microstrip Directional Coupler DIN-Female. The Directional Coupler DIN-Fem...

(1) Industrial Endoscope Camera Module Mirror: The feature of the endoscopy is a large field of small pores. Small aperture is designed for a long depth of view for the fixed focus endoscopy. The large field of view is required by endoscopy applications. Within close distances, you can observe as much as possible, only to ensure that you can only be guaranteed by a large viewing corner. The corner of the field will cause distortion, but the general endoscopes are not very high in distortion, and...

1. In terms of materials science, handheld video endoscope manufacturers can be divided into two types: hard tube type and hose type, also known as hard endoscope and soft endoscope. rigid The rigid endoscope includes three parts: image transmission, lighting and stomata. The image transmission part is divided into objective lens, relay system and eyepiece to form a conductive image. The lighting part adopts the method of penetrating cold light source into China with optical fiber. The rol...

What are the common problems in the use of Twisting Machinery Product and how to better use Twisting Machinery Product as a glass fiber Twisting Machinery Product. For common problems, let Xiaobian take everyone to learn together! 1. We know that the stability of the drawing speed is a very critical influencing factor for the quality of drawing. When Twisting Machine on work, I am afraid that the situation we do not want to see is the unstable rotation speed, fast and slow, which causes inter...