1, 19, rbc wireless charging , Great Wall Motor high-end new energy brand Salon car officially at the Guangzhou Auto ShowDebut and pre-sale rbc Wireless charging Mechdragon global limited edition, a total of 101 units, pre-sale price of 480,000 yuan. The point is, less than three hours after it went on sale, it was robbed... How big is the charm of this Mechlung rbc wireless charging to be able to do a new brand, the first car, new energy, 480,000 yuan presale price, can also be snapped up at once rbc wireless charging ? The answer is, this car is strong enough.
2, Salon YesGreat Wall Motor's new high-end car project planned by the end of 2020, the first mass production car - Salon Mecha Dragon debuted at the 2021 Guangzhou Auto Show, and the new car is positioned as a pure electric coupe. Salon Auto said that in the future, it will become the first luxury pure electric brand in China with 400,000-800,000 yuan. Salon is the third high-end brand launched by Great Wall Motor after Wei brand and Tank, and it is also the sixth automobile brand under the Great Wall Motor banner.
3. Mecha Dragon is the first model launched by Salon brand, a new brand of Great Wall Motor. From the naming, it is not difficult to see that this model of Salon has a hard body line and is full of mecha style, which is liked by customersMech style, industrial style men are very attractive. In recent years, the development of domestic cars is also very rapid, but the Mecha dragon as a new energy 0T coupe, dare to sell 400,000, have to say that its ambition is very big.
N-bromosuccinimide (N-bromosuccinimide abbreviation NBS, also known as n-bromosuccinimide, 1-bromo-2, 5-pyrrolidione) is a very useful brominating agent, which is highly selective and only attacks the weak C-H bondAttack the α-H attached to the double bond or benzene ring. The structural formula is shown as the first reactant in the last equation in the figure. Bromination with NBS requires an initiator and has been shown to be carried out in constant, very low concentrations of bromine.
is a brominating agent that produces Br free radicals. Insertion of double bonds can be performed: free radical reaction can be performed with the α site of the conjugate system (including the benzyl site) bromination can be performed: the α site of acyl chloride can be brominated: Hofmann rearrangement can be triggered: chiral oxidation of the carbonyl group can be triggered: etc.
NBS also known as N-bromosuccinimide; CAS: 128-08-5; Molecular formula: C4H4BrNO2; Molecular weight: 1798 Related reactions: bromination with the α site (including the benzyl site) of the conjugate system; Alpha bromination of p-acyl chloride; Triggers Hofmann rearrangement; Initiating chiral oxidation of the carbonyl group.
NBS is N-Bromosuccinimide, also known as N-bromosuccinimide, English name N-Bromosuccinimide, NBS for short. White to milky white crystalline solid or powder, slightly bromine odor, commonly used in the industry of chemical raw materials, mainly used to regulate low-energy bromination reaction, is a good bromine reagentHydrogen atoms that can replace benzyl or allyl groups. It can also be used as an oxidizing agent for alcohol oxidation to aldehydes and ketones, and aldehyde oxidation to acids.
NBS is N-bromosuccinimide. N-bromosuccinimide is a five-membered cyclic dicarboxylimide compound with a bromo-substituted group on the nitrogen atom, also known as n-bromo-succinimide, with the formula C4H4BrNO2. Appearance is white to milky white crystalline solid or powder, slightly bromine odor.
NBS (N-bromosuccinimide) is an important reagent in organic synthesis. It is widely used in radical substitution reactions and electrophilic addition reactionsWith Copper ware will "rust" if left in the air for a long time. Copper in the humid air will be oxidized into black copper oxide rbc wireless charge , copper oxide on the surface of the copper continues to interact with carbon dioxide in the air rbc wireless charge , generating a layer of green basic copper carbonate CuCO3Cu (OH) 2. In addition, copper will also interact with hydrogen sulfide in the air to produce black copper sulfide. Scrub the surface of the darkened copper with cotton dampened in concentrated ammonia, and it will shine immediately.
Copper andOxygen in the humid air reacts to form copper oxide, which further reacts with carbon dioxide to form basic copper carbonate. In addition, hydrogen sulfide also reacts with copper to form copper sulfide. Using cotton dampened with concentrated ammonia water to wipe the surface of the copper can convert its dirt into soluble copper ammonia complex, thus restoring the luster. If acetic acid is used, the effect is not as significant as ammonia, but it can also remove dirt, and the copper will be bright again after cleaning.
The optical properties of ceramics can be used to manufacture solid laser materials, optical fiber, light storage materials and various ceramic sensors. In addition, ceramics are also used as piezoelectric materials, magnetic materials, and substrate materialsLet's wait. In short, new ceramic materials almost cover every field of modern science and technology, and the application prospect is very broad. Magnetic material Magnetic material is an important electronic material.
1, CTCS application level 3: is based on wireless transmission of information and the use of track circuit and other ways to check the train occupation of the train operation control system. The point device mainly transmits positioning information. CTCS application Level 4: is completely based on wireless transmission of informationThe train operation control system. The track circuit can be cancelled on the ground, and the RBC and the on-board verification system can work together to complete the train positioning and integrity check, enabling virtual block or moving block.
2, [Answer] : This question is to examine the classification of train operation control system. CTCS are divided into 5 levels based on the system configuration. C is correct.
3, CCTS-3 level vehicle-ground communication adopts wireless mode, and can achieve two-way communication between the vehicle and the ground. Compared with CCTS-2 level, the amount of messages that can be transmitted is very large, and CCTS-2 level isOne-way information transmission; The CCTS-3 stage train control system can achieve a time interval of 3 minutes, while the time interval of the CCTS-2 stage is generally more than 5 minutes, so the efficiency of the CCTS-3 stage is improved.
4, CCTS-1: for 160km/h below the line, the introduction of the main locomotive signal and safety monitoring, the development of cryptography technology such as ZPW-2000 uninsulated frequency shift track circuit becomes the key. CTCS 2: The integration of wireless communication and track circuit, vehicle-ground integration, no signal restrictions, marking China's train control has entered a new eraGeneration.