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Features: to overcome the traditional filtering products, volume is small, vulnerable to contamination jams, filtering, part of the need to remove the cleaning and unable to monitor the state of the filter and so on shortcomings, with the raw water filter and automatic filter for the discharge of pollutants by automatic cleaning function, and uninterrupted water washing sewage system, can monitor the working state of the filter, a high degree of automation. The requirements for various filtering precision are covered from 10um to 3000um.
Spacecraft flew hundreds of thousands to hundreds of millions of kilometers from the earth, injecting speed when the size and direction of a slight error, arrived at target planets will appear large deviation error, for example, when Mars probe injecting speed 1 m/s speed (about one over ten thousand), arrived at Mars, about 100000 km distance deviation. Therefore, precise control and navigation must be carried out during the long flight. Flying to the moon is usually controlled by the orbital control system of the ground and space probe (see orbit control). Interplanetary flight distances, radio signal transmission time is long, the real-time remote control, can't so planets and interplanetary spacecraft orbit control system shall have the ability of autonomous navigation (see interstellar travel navigation and control). The United States, for example, "pirates" spacecraft in space flight of more than eight hundred million km, for 11 months of 2000 times of autonomous orbit adjustment, the final surface to achieve a soft landing on Mars, placement accuracy up to 50 km. In addition, in order to ensure the accuracy of the orbit control engine, the communication antenna is always aimed at the earth, and other systems work normally, and the detector has the autonomous attitude control ability
This is an article of a malicious program, to create Cryp1. It is a virus that enters the user's computer, encrypts every one of the files that it may, and requirements a ransom for their decryption. Such viruses are called ransomware, and are considered one of the most dangerous kinds of viruses. Their danger is in the fact that they pursue a specific goal then when the thing is achieved - the person reaches a disadvantage: they can either agree to spend the money for money, or lose his data, which may be very valuable. Cryp1 virus encrypts files while using the RSA algorithm. This algorithm is one of one of the most complex on the planet, which is used not just by hackers, but additionally by the governments and also the military forces of countless countries, such as United States. The code is indeed complex, that it must be tough to crack it devoid of the key. More precisely, it's possible, but requires enormously powerful computer and an immense timeframe. Of course, a normal user can?t decrypt the information, and, frequently decides to pay for a ransom.
Garage door opener may be the largest mechanical section of your property. Sometimes, you never pay attention into it, until it stops working. When it decided to go wrong, what when you do? You may be consider repairing. You just pay a few dollars and think now it's in working condition like before. But it is far from the truth. If once it created a problem, there exists a possibility it could create the common problem again.
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