For this reason, the competent departments of agriculture and forestry in many places have issued various measures to require farmers to do a good job in the prevention and remediation of crops in order to deal with the “late spring cold.” For example, for the vegetable greenhouse, the relevant departments stipulate that “when the temperature in the greenhouse is below 0 ℃ for a long time, straw bags, non-woven cloth, sunshade net and other mulch should be added in the greenhouse at night to prevent frost injury and take basin fire or fire temporary heating. At the same time, open fire can not be used when heating to prevent smoke damage, it is necessary to set up a flue to discharge harmful gases outdoors. Strengthen the coverage in time to promote heat preservation and anti-freezing. ”
GMT die sheet has high specific strength, lightweight components, high degree of freedom of design, strong collision energy absorption and good processability, so it has been widely used in the automobile industry abroad since the 1990s. With the increasing requirements of fuel economy, recyclability and easy processability, the market of GMT mold materials used in the automobile industry will continue to grow steadily. At present, GMT mold materials are widely used in the automotive industry, including seat frame, bumper, dashboard, engine cover, battery bracket, pedal, front, floor, guard, rear traction door, car roof, luggage bracket, sunshade, spare tire rack and so on.
When selecting soft rubber joints, we should pay attention to selecting the appropriate product model. This can be considered from the aspects of the pressure of the wiring pipe, the interface mode, the material and the amount of repair, and the total number is selected according to the noise reduction offset. Pipe connectors that cause instantaneous working pressure to be higher than pressure should also be selected. (for example, when the pipe runs the transient working pressure > 1.0MPa, the 1.6MPa in the connector operation should be selected. When transient working pressure > 1.6MPa, 2.5MPa connector should be selected). When the pipe material is acid, alkali, oil, high temperature and other materials, the working pressure of the rubber soft joint should be one grade higher than the pipe pressure. Outdoor applications or pipes facing the sun and solar wind should be covered with sunshades to prohibit exposure, rain and wind erosion. The surface of the joint shall not be brushed with sand control and thermal insulation material. Due to the aging of rubber products, it should be inspected and replaced immediately.
Set up a sunshade during a camping picnic to enjoy the scenery of nature without worrying about being tanned by the sun. The small awning is about 12 square meters, the area is large enough, the large one has reached 20 square meters, and there is no pressure to accommodate more than 10 people.
The sunshade on the dashboard has been completely removed, the center console has become flatter, and the front view has been further improved; both the main and passenger positions are equipped with tuyere cup holders, which is a classic design from the second generation model (the third generation flying degree is only provided by the main driver side). In addition to the traditional glove box, there is a small independent locker on the center console on the side of the co-driver-this is not a high-tech configuration, but it improves the practicability of the whole vehicle.
For people in the city, picnics in the suburbs are the purest taste of spring. In Haikou, it is not difficult to find a grass under the coconut grove. When it comes to picnics, the first thing that comes to mind is the Ten Thousand Green Garden, where there is open grass and coconut trees around for sunshade, which is hardly perfect.
●?? One is to clear the ditch and reduce dampness. Clean up the ditches in time to reduce the field humidity and prevent waterlogging damage caused by stagnant water in the field; the whole bed in the greenhouse is covered with plastic film, and the ditch is covered with dry straw to reduce the humidity in the greenhouse. The second is to keep warm against the cold. Pay attention to the heat preservation of vegetables, check the leakage of the greenhouse film, close the shed at the right time in the morning and evening, properly uncover the film and ventilation when the temperature is high, adjust the temperature and humidity in the shed, and increase the light. Open-field vegetables can be tied around the waist, floating surface covering sunshade net, straw and other anti-freezing. Third, strengthen management. Do a good job in pruning vegetables in the field, beating leaves, hanging vines, fertilizing, cultivating soil and so on. Fourth, post-disaster management. After the freezing weather of rain and snow, timely ventilation and humidity drop, spraying to prevent disease, frostbite disease cleaning and other measures, strict control of watering, sunny weather should pay attention to timely return to the curtain to prevent plant seedlings from withering and dying.
Generally speaking, about 150000 of the models in the interior of the advanced sense and materials, there will not be so much sincerity. In terms of materials, the X90 dragon uses 118 kinds of interior materials for dashboards, carpets, door guards, ceilings, posts, steering wheels, damping mats, seats, sunshades, etc., and is also equipped with CN95 air conditioning filter elements, dual-channel laser PM2.5 sensors and negative ion generators to ensure the air quality in the car. In terms of these materials and configuration, it can be said to be quite kind.