Mining model based on computational power

The difference between community and neighborhood committee is as follows:

1. Community is a geographical and social concept, not a management unit. The neighborhood committee is a management unit with administrative functions. There may be several neighborhood committees in a large community, and the scope of management of a neighborhood committee may exceed that of a community

① to publicize the constitution, laws, regulations and national policies, safeguard the legitimate rights and interests of the residents, and ecate the residents to fulfill their obligations according to law

The Casar class, which takes air defense as its main task, must be equipped with high-power air defense radar, air defense combat system and heavy area air defense missile launching system. Both the equipment weight and the occupied deck space are further increased, which makes the basic design of f-70 general purpose destroyer face the high tension of space and weight; For this reason, Kasar level has to make some sacrifices. First of all, the original design of Casar class was finalized in 1977, and the superstructure was made of aluminum alloy; Later, based on the lessons of the 1982 Falklands war, most of the surface ships built by various countries used steel to replace the flammable and fusible aluminum alloy materials
after the Falklands war in 1982, the French Navy modified the design of three unfinished destroyers of George Legge class, and adopted steel superstructure instead; However, the first Casar class warship, which was built after the end of the Falklands war, had to continue to use the lighter aluminum alloy as the building material of the superstructure e to its complicated equipment (the weight of the whole ship's weapon system, ammunition and oil has exceeded 1 / 3 of the ship's displacement) and saturated load. In order to make up for the inherent limitation of low anti damage ability of building materials, Casar class is equipped with precise and perfect damage control fire fighting system and nuclear and biochemical protection equipment (including spray cleaning device) to make up for it
the surface of the superstructure of Casar stage is inclined and smooth, which can partly rece the RCS. In order to increase the downward firing angle of the bow main gun, the bow of Casar class is cut down by 5 degrees to present a negative saddle arc. On the central axis of the second deck of the ship, there is a passage through the whole ship. The personnel on board can use this passage to move quickly on the ship and reach the battle position. In the nuclear and biochemical environment, the whole ship can maintain a sealed operation state for 24 hours. Compared with the French ships in the past, the Casar class has better habitability. The soldier cabin is one for every six people, and the military / Sergeant cabin is different according to class and seniority. The highest level is one for two people. Besides, there are more spaces in the living service cabin areas such as restaurants, kitchens, warehouses and medical treatment. Kasar has 225 personnel (19 officers) and 251 berths. The spare space can accommodate the relevant personnel of Marine Corps, special forces or headquarters. The over weight also occurs in the power system. The George Legge class originally used the composite gas turbine or diesel engine power system (CODOG) which is in line with the current trend. The gas turbine has the advantages of fast start, fast acceleration, light weight and high thrust to weight ratio, which is the mainstream power of the new generation of surface warships; However, in order to cooperate with the gas turbine, a large air inlet needs to be set up on the surface of the ship, and a space in front of the air inlet is needed as a buffer. Nothing can be installed so that the gas turbine can absorb enough and stable air flow, which will occupy valuable space on the surface of the ship. In order to save space for air intake, Casar class abandoned high-performance gas turbine and adopted composite diesel engine and diesel power system (CODAD), becoming the first surface combat ship of French navy to use all diesel power< The main engine of Casar class is four SEMT 18 cylinder PA6 V 280 BTC diesel engines, which are propelled by two fixed pitch propellers. The main engine operates at 1050 rpm and has a total power of 43200 HP. It is divided into two completely independent engine rooms (40 m of the ship's length). The probability of the two cabins breaking into water at the same time is extremely low, which can increase the survival rate; The ship's power is provided by three sets of diesel generators with a power of 3400kw. The maximum speed of Casar class reached 29 knots, while the de Gaulle nuclear powered aircraft carrier planned by France was only 27 knots at that time, so the matching was not a problem at all. Under the speed of 24 knots, the enrance of Casar class reaches 4800 nautical miles. If it sails at the speed of 17 knots, the enrance is 8200 nautical miles, which can last for 30 days at sea. At first, the ship was equipped with a Thompson CSF Jupiter 2D long range air search radar and a drbv-15 sea tiger plane search radar; Drbv-15 should be only a temporary equipment, which was replaced by the new drbj-11 Abel 3D multi-function phased array radar in 1992. Arabel radar uses X-band, although the use of a short range, but high accuracy, and its high speed (60 rpm) is also concive to accurate tracking of approaching targets. This ship is equipped with two Racal drbn-34a (i.e. 1229 type) I-frequency navigation radars, one of which is set in the front of the ship, mainly for navigation, and the other is set in the rear of the ship, mainly for helicopter control
the ship is equipped with two American made an / spg-51 lighting radars to guide the standard sm-1mr air defense missile to engage. In addition, there are also DCN's CTMS optical / Radar launch control system (including IBC 1A piranha II TV / infrared tracking system, Sagem dibv-1a infrared target tracking system integrated with search radar, and DCN's CTMS optical / Radar launch control system) Thomson drbc-32 / 33 I-frequency shipborne gun fire control radar and CSEE najir optical command system are used to guide and control shipborne gun. The EW system of the warship includes the arbb-33 electronic countermeasure system (H / I / J frequency) of Dassault (Thales optrosys now), the arbr-17b electronic support system (dr-3000s French version) of Thomson CSF (Thales now), the ambl-1b dagaie jamming wire device of two csees (EADS now) and the ten joint jamming bomb launcher of two SAGAIE ambl-2a, In addition, there is an American made an / slq-25 torpedo countermeasure system. The most important air defense weapon of Casar class is an American made mk-13 single arm missile launching system, which is located between the hangar and the lighting radar. This equipment is transplanted from four air defense 47 destroyers. However, the air defense missiles are replaced by the more advanced standard SM-1 from the original tartar, with a ammunition capacity of 40. The installation position of this device is sandwiched between the front and rear superstructure, so the shooting angle is limited greatly, which is not ideal. The first two Casals adopted mk-13, while the French Navy initially planned to replace the latter two Casals with vertical launched aster series air defense missiles, but the construction plan of these two vessels was cancelled
in the aspect of near air defense, there are six legal units (syst) on both sides of the Casar hangar è me d' Auto-d é fense Rapproch é e Anti-a é rienne L é (g) air defense missile device, which intercepts approaching enemy aircraft and enemy missiles with the sea derivative of army northwest wind missile; Each sadral is equipped with about 13 spare missiles in addition to six spare missiles. In general, the sadral system is under the command of the combat system, and it is fully automatic. If necessary, it can be changed to manual operation. During the test in October 1990, Casar's sadral air defense missile system successfully launched two northwest wind air defense missiles and shot down a sea skimming flight target
the Casar bow is equipped with a model 1968 cadam 100 mm 55 diameter high level al-purpose automatic naval gun with a firing rate of 78 rounds / min, which has both air defense and anti surface capabilities. Other weapons on the ship include eight MM-40 anti-ship missiles (replaced with new MM-40 block3 since 2006), two Oerlikon 20 mm machine guns (firing rate 720 rounds / min, range 10 km) on both sides of 02 deck of superstructure, two 12.7 mm machine guns, two kd-59e fixed light torpedoes (equipped with ten ECAN L5 mod 4 light anti submarine torpedoes, with a range of 10 km), Equipped with active / passive sonar seeker, the speed is 35 knots, the maximum range is 10km, it can attack targets within 550m in depth, and the warhead has 150kg high explosive warhead)