Human hair Styles and types of hair bundles 20

1: Smooth hair (that is, the hair root is the hair root hair is slightly hair, the big braid is cut off, the head and tail are not reversed, not messy, this is the best raw material for making wigs.) Hair strands are bouncy.

The identification method is such as undyed natural color, the root is black, the tail is slightly dull yellow, or there are split ends. The dyed one is also more elastic.

2: Cutting hair is the hair cut by a haircut, which is worse than smooth hair, because many of them are dyed and permed.

Identification method: This kind of wig is all made after dyeing, so it is more difficult to distinguish. Difficult for non-specialists to discern.

3: Hair throwing, as the name suggests, is the hair that is discarded, that is, the hair that falls out of the collected comb. This is the worst.

The way to identify is to grasp the ends of the hair and look at the ends of the hair in the sunlight, and there are blackheads one by one.

The origin of the hair strands.

It is divided into Chinese, Indian, European, Malaysian, Vietnamese, etc., as the name suggests, it is the hair of the people of that country.

Among them, Chinese hair and Indian hair are the most used, because Indian hair is most like European hair, fine and soft, so it is mostly used for export, the hair is very fluffy and soft, and it is a natural and natural wavy shape after washing. Chinese hair is used in the production of Jewish wigs and for Japanese and Korean as well as domestic sales. Slightly thicker hair. Straight and hard.

The hair weaving and hair repair made by "pretty head" are made of real hair, which is very natural, and it is basically impossible to tell that it is wearing a wig.

A power supply that controls the ratio of the switch-on and turn-off time to maintain a stable output voltage, and the switching power supply is generally composed of a pulse-width modulation (PWM) control IC and MOSFET. Compared with switching power supplies and linear power supplies, the cost of both increases with the increase of output power, but the growth rate of both is different. The cost of a linear power supply is higher than that of a switching power supply at a certain output power point, which is called the cost reversal point.

With the development and innovation of power electronics technology, the switching power supply technology is also constantly innovating, and this cost reversal point is increasingly moving to the low output power end, which provides a broad development space for the switching power supply.

Wigs are divided into hair strand materials and hairnet materials.

These two determine the kind of wig.

There are two kinds of particle beams being studied by Russia and the United States, one is a ground-based charged particle beam** and the other is a space-based neutral particle beam**.

The basic principles of particle beams**.

Charged particle beams in the atmosphere, which are characterized by the fact that the particle beams are electron beams rather than neutral beams. In the atmosphere, although it is attenuated, it can be conducted and suitable for use. In the vacuum state outside the atmosphere, the charged particle beam is dissipated in a short time due to the repulsion between the charged particles, so the neutral particle (neutron) beam is more suitable for use in outer space.

Particle beams** are generally composed of particle accelerators, high-energy pulse power supplies, target recognition and tracking systems, particle beam precision targeting and positioning systems, and command and control systems. The particle beam** structure is shown in Figure 1.

1. Flexible body restraint such as rope, chain, tape.

2. Smooth surface constraint such as phagocytosis gear to tooth surface.

3. Fixed hinge constraints.

4. Movable hinge bearing.

5. Bearing restraint.

There are many types, first of all, skirts, straight legs, A-line skirts. Flared skirts, irregular, fishtails, and what pumpkin skirts are different according to the cut of the skirt, the A-line skirt is an oblique cut, and there is a circular cut that can be used to make a semi-circular skirt and a full round skirt.

Ordinary skirts are pleated, and the circumference of the upper hem and hem of the pleated skirt is the same.

Dresses, which are divided into dresses and vests, as well as suspenders and halternecks.

According to the length of the skirt, it is divided into short skirt and long skirt.

According to the printing points, no printing, floral, positioning flowers, you think, if it is a plaid cloth skirt, the plaid print will be oblique if it is done by the oblique cutting method. So you can only pleat with a straight cloth. Not to mention the positioning flowers, so it is difficult to make a large skirt with positioning flowers, because to solve the problem of skirt accumulation at the waist, the production level of this foreigner is much better than that of China.

There are various types of abdominal belts, which can be roughly divided into two categories: ordinary type and professional functional type. Nowadays, the abdominal belt is new, some of the design is more scientific, the materials are better, the function is more complete, and the use of more convenient professional functions of the abdominal belt is on the market, and the professional and high-quality abdominal belt has the ability to help shrink the abdomen, promote the recovery of the uterus and birth canal, prevent the internal organs from sagging, promote the discharge of lochia, and reduce the legacy of stasis. For those who are more than two months old, use the enhanced abdominal combination combination.

Classification of abdominal band The so-called functional abdominal band is a kind of abdominal belt with functional effect on the basis of physical abdominal binding of the abdominal belt. It is the scientific research personnel for the postpartum female physiological characteristics, the accumulation of 20 years of experience in the production of abdominal girdles, the scientific use of German textile technology and traditional Chinese herbal medicine abdominal acupoint method, so that the postpartum abdominal collection has reached a new breakthrough, its materials are better, more functional, simple and convenient to use, not only to help shrink the abdomen effect is good, the postpartum uterus, birth canal rejuvenation, lochia discharge, body function recovery have a good effect, is a more ideal, practical professional postpartum abdominal belt.