Parents generally value their children’s breakfast. However, they ignore the importance of Chinese food, especially when the winter vacation approaches. Busy parents of both parents do not have time to take care of children who are on holiday at home, or even allow their children to stay in bed to make up for lack of sleep. Some snooze children slept until noon, skipping breakfast and eating lunch and eating biscuits, bread, and snacks. The winter break coincides with the Spring Festival. The festival is full of sugary foods, greasy food, and lack of nutrition. Relatives and friends gather for many holidays. Children eat snacks and do not eat dinner. Experts pointed out that children's diet is not healthy and irregular, which often leads to the frequent occurrence of gastrointestinal diseases during the Spring Festival holiday. Therefore, parents should urge their children to develop good eating habits and be prepared to prepare their children's lunch carefully. How to arrange for children's lunch is better Children in adolescence grew rapidly, and adequate nutrition at noon had a great influence on their growth and development, prevention of disease, and psychological development. According to experts, lunch is the main meal for young people on a day. Nutrition for lunch should account for 40% of all day nutrition. 1. Prepare meals at home: warmer box is better than microwave oven heating Parents who have conditions can get up early in the morning to prepare lunch for their children and use vacuum flasks or warm boxes to hold them. The children can eat their own hot meals at noon, which is both hygienic and safe. In winter, use a warming box to prepare meals. Don't worry about the deterioration of the food, and avoid the loss of nutrition caused by hot meals in the microwave oven. 2. Can't do at home: choose quality delivery package Discover a hygienic and delicious restaurant near home. Parents should communicate with their children to understand their children’s dietary preferences, match the packages they want to eat, give them the nutrients they need, and tell their children about healthy dietary knowledge, guide and help them choose healthy foods. Packages should pay attention to nutritional balance, remember not to order only delicious and nutritious foods, to prevent them from eating too much fat or sugar. Take-away packages should be rotated frequently. Don't eat only one course every day. What is the most reasonable for children to eat for lunch? 1. Add more fish, viscera and other high protein foods Experts point out that lunch should eat more high protein foods. Such as eating 2 or 3 times a week fish, you can choose sunfish, squid, etc., this type of fish is cheap and beautiful, fresh fish, less fish bones, it is suitable for children; 1 to 2 animal organs, such as liver soup, Can be clear eyesight heat; stir-fried pork loin can also regulate children's nocturia, etc.; lamb, rabbit meat is suitable for winter consumption, can warm body. The high quality and high protein in these foods can increase tyrosine levels in the blood, keeping the mind sharp and playing an important role in enhancing understanding and memory function. 2. Winter cold weather allows children to eat more fruits and vegetables Cold weather in winter, children drink less, should eat more vegetables and fruits containing vitamin C, such as apples, tomatoes, jujube and so on. In addition, we must eat more minerals, cellulose, coarse grains such as corn, millet, glutinous rice, mung beans, soybeans and other foods. 3. Lunch to be more tricks do not ignore calcium Lunch should pay attention to diversity, and need to be reasonable, but also strive to diversify the variety of food, food patterns within a week not to repeat. The amount of calcium that a child needs every day is about 700-1000 mg, which can be supplemented by drinking milk and bone soup. The bone soup is not only rich in calcium but also helps the body absorb calcium. It can be consumed 1 or 2 times a week. 4. It is best not to eat convenience food at lunch In order to solve their children’s lunch problems, some parents often pack a large package of food into the refrigerator, allowing children to choose freely. Children can only eat convenience foods such as instant noodles and Western-style fast foods. These foods are too simple, low in nutrient content, and have no nutrition. Balanced, may have adverse effects on human health.
The use of a high reflectance mirror can double the output power of the laser; and it is reflected by the first reflecting surface, the reflected image is not distorted, and there is no ghosting, and it is the reflection of the front surface. If an ordinary reflector is used as the second reflecting surface, not only the reflectivity is low, the wavelength is not selective, but also the ghost is easy to produce. However, the use of a coated film surface reflector not only has high brightness, but also is accurate and unbiased, the picture quality is clearer, and the color is more lifelike. The front surface mirror is widely used for optical high-fidelity scanning reflection imaging.
On the surface of the optical flat panel, a mirror made of vacuum-plated aluminum film. In order to prevent scratches and oxidation, a protective film of magnesium fluoride (MgF2) is plated on the aluminum surface.
Protected Aluminum Mirror: Ravg>90% 0.4-0.7μm
Enhanced Aluminum Mirror: Ravg>92% 0.45-0.65μm, Ravg>90% 0.19-0.4μm
Protected Silver Mirror: Ravg>95% 0.5-0.8μm, Ravg>95% 2-10μm
Protected Gold Mirror: Ravg>84% 0.7-0.8μm ,Ravg>95% 0.8-2μm
Dielectric Mirror Mirror: Ravg>99.9%>400nm, Ravg>99% 0.25-0.4μm
First Surface Mirror,Enhanced Aluminum Mirror,Optical Aluminum Mirror,Optical Enhanced Aluminum Mirror ChangChun Worldhawk Optics Co.,Ltd , https://www.worldhawk-optics.com
This type of mirror is used as a reference mirror for low-reflectivity surfaces (for example, the surface of a flat panel or an electronic circuit experiment board).
