"The bucket refers to the southeast, and the dimension is the summer. Everything grows up, so it is named Xia." At this time, the sun yellow is 45 degrees. In astronomy, Lixia said that it is about to bid farewell to spring, which is the beginning of summer days. It is customary for people to regard Lixia as an important solar term that is obviously elevated in temperature, summer heat is coming, thunderstorms are increasing, and crops are entering the peak season. [temperature characteristics] According to the climatological standards, the daily average temperature rises above 22 °C for the summer season. Before and after the "Lixia", only the south of Fuzhou to Nanling first entered the summer, while some parts of the northeast and northwest just entered. In spring, the average temperature in most parts of the country is around 18-20 °C. [Rainwater Features] After the summer, Jiangnan officially entered the rainy season, and the rainfall and rainy days increased significantly. In North China, Northwest China and other places, the temperature rises rapidly, but the precipitation is still not much, the evaporation is strong, and the atmosphere is dry. [early lightning protection] In the early summer, there were more incidents of strong convective weather and lightning strikes. If you are in the wild, look for shelter immediately. Reinforced concrete buildings with lightning rods and steel frames are good places for lightning protection. Vehicles with complete metal compartments can also be used, but be careful not to get close to any part of the lightning protection equipment. When there is no shelter in the wild, don't get close to the open area or the lone tree on the top of the mountain. It is the most vulnerable to lightning strikes; don't stay in open waters and boats; on the edge of tall woods, around wires, flagpoles and haystacks, Tent and other high-rise objects without lightning protection equipment can not stay, away from rails, long metal railings and other large metal objects, avoid standing on the top of the mountain, the commanding heights and other places. If you happen to be at home, close the doors and windows; try not to use the radio and TV with external antenna, do not answer the phone, at the same time, the home use computer, color TV, audio, DVD player and other weak electrical equipment should not be close to the external wall, lightning occurs It is best not to use these devices. In addition, some office electrical equipment should also be well protected against lightning, because the general office electrical equipment can withstand only a few tens of volts, and the maximum current passed is more than ten amps. When thundering, a strong magnetic field is generated in the air. At the same time of discharge, the magnetic field radiates to the outside, and the instantaneous current can reach several tens of kiloamperes or even hundreds of kiloamperes, and the instantaneous voltage reaches several tens of kilovolts or even hundreds of kilovolts. Such a strong voltage, high current, electronic equipment can not withstand. If lightning enters the room along the power line, data line, or other means, it will cause damaging damage to the equipment and even endanger people's lives. [Driving sleep prevention] Drivers and friends, if you are sleepy while driving, it is best to stop and rest. If you can't rest, you can take the following measures to prevent sleep: 1, do deep breathing, deep breathing can slow heart rate, reduce nerve tension, lower blood pressure. 2, can smell the wind oil, cool oil, toilet water and ignited the sanitation smell, can drive away the sleepy, refreshing spirit. 3. Listen to music or songs with beautiful and bright tunes and exciting and exciting people to enjoy your body and mind. The following actions must not be: 1. Always turn on the air conditioner. Opening the air conditioner is likely to cause insufficient oxygen in the car, resulting in hypoxia and reduced alertness. A perfume containing mint and lilies can be placed in the car to help refresh. 2. Refresh yourself with coffee or tea. Coffee and tea can only bring a moment of excitement, but it does not allow you to observe the road clearly, make the right response, and after a short period of excitement is a continuous suppression. [vehicle inspection] The climate becomes hot and hot, the light becomes strong, and the road surface becomes soft. It brings some hidden dangers to the driving. Before the coming of summer, the circuit, oil circuit and circuit of the car should be inspected to avoid the occurrence of flameout and spontaneous combustion. In particular, the following vehicles must be thoroughly inspected. 1. The car was once blistered. After the car is wading, it is very likely to cause oxidation of the circuit connector, and the power supply is not balanced, resulting in local heat generation, causing spontaneous combustion. 2. The car has been modified. In the process of modification, the circuit and oil path of the car may change. If the technical level of the modified personnel is not high, it will definitely leave a safety hazard. 3, the car is equipped with anti-theft devices or dark locks. Adding these devices will definitely change the circuit or oil circuit of the vehicle. If the handling is not careful, it will also leave a safety hazard. In this regard, some insurance companies will specifically designate installation sites for insured vehicles, or provide anti-theft devices for vehicles that are insured "self-inflation" in order to avoid accidents. 4. There has been a large degree of collision or damage to the chassis. If the oil circuit is damaged in the collision, loose joints, fuel leakage, etc., the risk of spontaneous combustion is quite high. 5. Vehicles with excessive age and oily roads. [Diet Health] In the summer season, the time value is ambiguous. The change in nature is that the yang is getting longer and the yin is getting weaker. Compared with the human body, the liver is getting weaker and the heart is getting stronger. At this time, the principle of diet is to increase acid and reduce bitterness, and to nourish the kidney and help the liver. At this time, the diet should be light, low-fat, easy to digest, rich in cellulose, eat more fruits and vegetables, coarse grains. Usually eat more fish, chicken, lean meat, beans, sesame, onions, millet, corn, hawthorn, alfalfa, bayberry, cantaloupe, peach, papaya, tomatoes, etc.; eat less animal offal, fat, etc., eat less salty Food such as salted fish, pickles, etc. Because of the hot summer sweating, the body loses more water, the spleen and stomach digestive function is worse, so eating more food is an important method of summer diet. Such as eating porridge in the morning and evening, and drinking soup at lunch, this can not only thirst, cool off the heat, but also nourish the body. Add some lotus leaves when cooking porridge, called lotus leaf porridge, tastes fragrant, slightly bitter taste in porridge, can wake up spleen appetizer, has the effect of eliminating heat, nourishing stomach and clearing intestines, and thirst. Add some mung beans or simmer soup with green beans when cooking porridge. It has the functions of quenching thirst, clearing away heat and detoxifying, and producing diuresis. [living health] In the summer season, although the summer is coming, the weather is getting hotter and the temperature is obviously rising, but at this time it is still cooler in the morning and evening, and the temperature difference between day and night is still large, so it is necessary to add clothes in the morning and evening. In addition, after entering the summer, the long night is more obvious. At this time, it is in line with the changes in the natural yin and yin deficiency. The sleep should also be relatively "late sleep" and "early rise" to accept the clear air of the heavens and the earth, but still should pay attention to sleep well. "Mid Meridian", especially to take a proper nap to ensure a full mental state and sufficient physical strength. ã€Sports Health】 After the summer, as the temperature rises, people tend to sweat out. "Khan" is the heart of the liquid. In the summer season, you should pay attention not to excessive sweating. After exercise, you should drink warm water and replenish body fluids. In the summer season, the choice of sports should not be too intense, you can choose relatively peaceful sports such as Tai Chi, Tai Chi sword, walking, jogging and so on.
Rock Drilling Core Barrels with Roller Bits adopt the high-carbon steel and special drilling bits angle to keep the drilling strength and efficiency.
There are tree types of core barrels: 1)Core Barrel with bullet teeth is used for cutting an annular ring in rock or concrete(also reinforced concrete). 2)Core barrel with roller bits is used in very strong rock formations(compressive strength > 100Mpa). 3)Cross cutter core barrel is mainly used to break rock cores which remain in the borehole after using a core barrel, also suitable for drilling hard, jointed rock(<100Mpa) and for penetrating through layers containing boulders. Applicable layers: dense sand, gravel and medium hard rocks, etc.
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