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.
Seinfeld sun umbrellas are put away like ordinary umbrellas. The car sunshade is designed according to the shape of the car through the sun protection principle of the sun umbrella, covering from the front windshield to the rear windshield, which can effectively reduce the temperature in the car at high temperature.
The sunshade and heat preservation system on the top of the greenhouse. In order to improve the adaptability of the system, greenhouse construction manufacturers, so that it can be extended to most of the solar greenhouse built in the northwest, Gansu greenhouse construction, the system uses steel cable drive mechanism. Its working principle is that the motor drives the drive shaft to run, and the tight wire sleeve on the drive shaft turns the circumferential motion into linear motion. The aluminum drive card connected with the drive line drives the driving side aluminum profile to move parallel on the curtain line through the word connection, and the driving edge aluminum profile pulls one end of the curtain slowly to unfold and fold, that is, after all is folded, the opening and closing limiter switch is triggered respectively, the motor stops, and the operation is over.
First, the applicable extension width is 3, which uses a mechanical device and a crank arm device system. Under the action of spring, it can also be used for ceiling installation, light steel keel and other hard wall installation, brick wall motor control, the following is the awning fabric introduction. 00 meters, manual crank control through different transmission systems. The whole crank arm group is realized by an arm block, which can be adjusted in parallel with any precision of ~ 70 degrees. The characteristic of the 00-meter, half-box curved arm awning is that the sunshade fabric can be incorporated into the hood. Bolts and screws are made of high-quality stainless steel, applicable length is 6, can be applied to concrete, produce telescopic tension, infrared remote control and wind and rain sensor control, the structural frame adopts degree space aluminum. Wood. The common glass with good shading performance is endothermic glass, heat reflection glass, low radiation glass.
This dress is suitable for relaxing occasions, such as outdoor picnics, travel and so on. It is recommended to choose a loose printed shirt, you can choose a short-sleeved T-shirt or loose shirt, with a pair of comfortable denim shorts or casual pants to increase the sense of leisure. You can choose a pair of light and comfortable sneakers or slippers to make the whole wear more comfortable. It is recommended to match a sunshade hat to protect against the sun and increase the bright spot of the whole dress. Hairstyle can choose natural long hair or tied into a ponytail to increase the whole casual sexy.
EPP (polypropylene) foam is a foam material formed by foaming with polypropylene resin as the matrix. It not only has high heat resistance, high impact energy absorption capacity, good resilience and thermoformability, but also can be recycled. It is widely used in bumper, bottom guard, sunshade and other automobile interior and exterior decoration parts. EPP is a kind of high crystalline composite material with excellent performance, which has become the fastest growing and most environmentally friendly anti-pressure buffer thermal insulation material because of its unique and superior properties. EPP can be used in construction, packaging, automobiles, sporting goods, toys, toolboxes, food packaging boxes, household appliances, daily necessities and so on. And EPP is included in the “made in China 2025” key areas of technical materials, known as “green” foam materials.
