Class prepares picnic cloth and tent in group form; asks parents to put on comfortable and cool clothes and sunshade hats for children on that day; prepare a kettle, a healthy picnic food (sandwiches, sushi, pizza, water ghost salad, etc.); Creative DIY, ask children to bring watercolor pens, marker pens, paints and so on.
Therefore, on the whole, it is not recommended to put sunshade pads in the car. Because its refraction ability is not strong, the protection of the center console can be said to be minimal, and even make the temperature of the center console rise. The temperature is relatively high, the car in the sun for a long time will make the car heat up quickly, through the front windshield, the temperature of the center console is hot to hot, many car owners are worried that the center console will be scrapped because of the high temperature. If the center console is broken, maintenance is also a large expense.
2. Planting and management of eggplant fruit vegetables in spring and summer in protected areas. Tomato, eggplant, pepper and other eggplant fruit vegetables have been planted in the protected areas in spring and summer. The following aspects of work should be carried out in time: first, the protective facilities should be built and the greenhouse film should be buckled 15 days before planting, and the old shed should be overhauled in time. Second, fine soil preparation, deep ditches and high beds, especially around the shed to open ditches to lower the groundwater level. The third is to fully apply high-quality and mature base fertilizer. Fourth, after planting, timely watering root water, covering plastic film, building a small arch shed, stuffy shed for 5-7 days to promote slow seedling. Fifth, according to the weather changes and plant growth, timely ventilation and exhaust harmful gases during the day, and the low temperature at night should cover the small arch shed with grass curtains, sunshade nets, non-woven fabrics and other mulch to keep warm.
2. Thermal commonality first of all, it refers to the connection between different kinds of metals or between metals and non-metals by heating metals and manipulating the principle of thermal expansion or thermal melting. For example: aluminum sheet for copper core of computer radiator, embedded welding of horn net, composite of steel-plastic pipe, sealing of aluminum foil (toothpaste skin), motor rotor, electric heating pipe sealing and so on. 4. Automotive supplies industry: the automotive supplies industry continues to develop new cars and adopt different car interior accessories, the use of high packaging equipment technology is mainly used for car sunshade panels, car door panels, car airbags, car floor mats, car anti-skid mats, automobile leather pressing, and so on.
Facility vegetable production should do a good job in facility repair and heat preservation, adopt measures such as multi-layer film mulching and adding thermal insulation quilts to strengthen facility heat preservation, and where possible, heating equipment can be used to increase temperature. it is necessary to do a good job in the investigation of hidden risks in production, such as old facilities, heating charcoal and fire. Conscientiously implement measures such as clearing communication canals, timely uncovering and replenishing light, scientific fertilization and water pipe, etc., and make use of fine weather to restore ventilation and dehumidification in time after rain and snow, reduce the humidity of the shed, and reduce the occurrence of diseases. Vegetables in the open field should clear the ditch in advance to prevent stagnant water in the field, and cover the floating surface with covering materials such as plastic film, non-woven cloth or sunshade net to prevent cold; mature vegetables should be harvested and listed in time to ensure that the main vegetable products are not out of stock and not broken, so as to promote the stability of market prices.