Although the solar greenhouse has a very good thermal insulation performance, but from the point of view of safety, heating equipment is still an important factor. The southern part of our country generally does not need to heat up, but if we encounter bad weather continuously, we still need to use the energy stored in the greenhouse itself, otherwise it will not be able to meet the growth of vegetables. Therefore, whether in the south or north, heating equipment has always been a necessary protective measure. The technical aspect requires that in the equipment configuration of solar greenhouse, the configuration of thermal insulation equipment should be demonstrated in great detail. Of course, the work of Wuhu solar energy greenhouse needs the cooperation of a variety of equipment, with higher and higher temperature requirements, especially in autumn and winter production, external sunshade system, internal thermal insulation system and window opener and fan, wet curtain and other equipment need to be applied. For more information about the cost of Wuhu solar greenhouse, please contact Minghao greenhouse Engineering Construction Company directly.
3. Sowing, seedling and transplanting of fruits and vegetables should be done in time. Sowing seedlings or transplanting seedlings at noon in sunny days should be used in time to improve the strong seedling rate and survival rate. In the near future, it is necessary to do a good job in sowing and raising seedlings of melons in the greenhouse, laying electric heating lines to raise seedlings, covering the inner film early and late in sunny weather, revealing the film at noon in cloudy and rainy weather, covering the sunshade net or non-woven cloth on the small arch shed at night, artificial lighting and warming should be carried out in case of continuous low temperature and overcast and rainy weather to cultivate strong seedlings.
Recently, the temperature has changed greatly. In order to prevent frost damage, it is necessary to strengthen field management and do a good job of anti-freezing and heat preservation. Large areas of open field vegetables, especially leafy vegetables such as green vegetables and spinach, should be covered with non-woven cloth, old plastic film, sunshade net or rice straw before the cold wave of rain and snow. The overwintering vegetables in the greenhouse and the eggplant and fruit vegetables that have been transplanted in the early stage should be timely added to the middle greenhouse, the second film, the small arch shed, etc., take multi-layer covering measures to keep warm, remove the mulch in time in a sunny day, increase the light transmission, and increase the temperature in the shed. The temperature rises at noon and ventilates properly.
Plastic polyvinyl chloride (PVC) material is widely used in the manufacture of decorative skins and protective covers such as automobile dashboards and sunshades because of its low price and simple processing. However, in order to meet the relevant production requirements, PVC formula contains plasticizers of phthalic acid, heavy metals and other toxic substances; in addition, although PVC material itself is non-toxic, it will slowly decompose harmful hydrogen chloride gas at high temperature.
Two days ago, Sun Li also posted a photo of Duomei modeling another handbag made by her mother. In the photo, Duomei is wearing sunglasses and a sunshade hat, wearing a white shirt skirt and carrying a handbag made by her mother. She is dressed in a fresh and fashionable literary style.
Sliding panoramic skylight with handle sunshade double screen smart card reflection electric suction door foot feeling electric tail door 21 inch piano paint interior, heating windshield, remote preheating, adjustable indoor atmosphere lamp, front and rear seat heating before heating mahogany steering wheel heating tire pressure monitoring, lane departure system emergency braking system, front and rear parking sensors, driver assistance package, driver fatigue monitoring, blind spot monitoring, intelligent speed limit and road sign identification 20 seats electrically adjustable back adjustable advanced punched Windsor leather privacy glass pixel headlamp LED front fog lamp full-size spare tire, Android car app, Apple carplay app
Of course, the work of solar greenhouse requires the cooperation of a variety of equipment, with higher and higher temperature requirements, especially in autumn and winter production, external sunshade system, internal thermal insulation system and window opener and fan, wet curtain and other equipment need to be applied.
There are more environmental pollution sources in the car, such as seats, ceilings, dashboards, sunshades, sound insulation mats, damping boards, carpets, door interior panels, baggage compartments, seals, and so on. These are the main causes of materials, such as rubber, adhesive, leather and so on.
Fifth, tea. Winter tea is in a dormant period, generally low temperature overcast and rain has a limited impact on tea, but if it encounters wind and freezing or extremely low temperature, it will affect tea tree winter and spring tea production in the coming year. According to the weather conditions, take measures to protect against cold and heat preservation according to local conditions. One is to cover and keep warm. Cover the tea cover with rice (miscellaneous) grass, sunshade net and so on before the cold air comes. The second is to build barriers and guard against the wind. The land easily affected by wind freezing, the windproof barrier was established in the windward place by using materials such as sunshade net in advance, which was higher than the 20cm of tea canopy and tilted to the direction of tea tree. The third is to restore the tree situation in time. For the heavily frozen tea garden, due to the appropriate tree system after the beginning of spring, it is better to prune rather than deep pruning, so as to strengthen the management of spring tea fertility.
There are many kinds of automotive composites, including glass fiber mat reinforced thermoplastic composites. Natural fiber reinforced thermoplastic composites and carbon fiber reinforced composites are widely used in seat frames, bumpers, dashboards, engine covers, battery brackets, pedals, floors, protective panels, car ceilings, luggage brackets, sunshades, spare tire racks, etc., with the advantages of high strength, good durability, high reliability, low price, recyclable, degradable, renewable and so on.