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For the production of printed boards, because many designers do not understand the production process of circuit boards, the circuit diagram they design is only the most basic circuit diagram and cannot be directly used in production. Therefore, before the actual production, it is necessary to modify the circuit file and not only make a film diagram that can be suitable for the production process of the factory, but also need to make the corresponding punching data, mold opening data, and other data useful for production. It is directly related to the production process in the future.
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The circuit board is the bridge between the components.
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How to choose flooring.
First, the planning before choosing the floor can not be less.
1. Household flooring is more cost-effective than floor tiles.
Flooring is the latest popular decoration material and is cheaper than traditional floor tiles. If you want to save money by decorating the floor, you also need to consider the decoration style at home and choose the right floor according to the decoration style.
Flooring and floor tiles are found throughout the renovation and maintenance process, and flooring is more cost-effective. If there is floor heating at home, if there is a problem, the floor is removed and repaired, and then assembled. The floor tiles have to be broken and re-paved, so that they need to be purchased again.
2. Reasonably plan the floor paving area and purchase on demand.
In order to reduce the waste of flooring in the decoration process, it is best to plan the area of the floor that needs to be used, plus the number of losses, and select it to prevent the waste of excessive floor purchase. Common laying methods for flooring: three, six, nine and one-half.
The paving method of 369 is a stepped gap structure, which usually saves materials, and the material loss is about 3%; The loss of one-half paving is the largest, about 5% higher, but the ground of this kind of laying is neat and symmetrical, and the visual effect is better.
3. Plan floor paving accessories to save money.
The accessories for floor paving include floor nails, headless nails, floor glue, moisture-proof mats, and door strips; If it is a keel floor, you need an extra keel, etc. It is the accessories of the floor that occupy a very important position in the paving of the floor, and most of the after-sales problems of the floor are directly related to the floor accessories. Therefore, choosing a good flooring accessories can save future maintenance costs.
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Soldering can be done with solder and soldering irons, but it is recommended that you do not rush to solder.
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The landlord is good flux tin strip DXT-707 is tin on the plug-in or tin on the light board.
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I heard that reliability is very important in the field of automotive semiconductors. High reliability is Japan's strength. And can this advantage be smoothly translated into business opportunities?
For example, will customers buy with a high ** because of high reliability? Miki: Unfortunately, customers don't accept ** because of their reliability.
1. Plugging and unplugging method. The "plug-in method" is a method of "unplugging" or "plugging" a plug-in to look for faults. For example, if the machine has a "deadlock" phenomenon, this method is used to pull out the plug-in board piece by piece, and if the machine returns to normal, it means that the fault is on the board. >>>More
The unit of capacity, the capacity in the computer is identified by bytes, generally speaking, a Chinese character is 2 bytes, and the capacity units are "B (1 byte), KB (1024 bytes), MB (1024KB bytes), GB (1024MB bytes), TB (1024GB bytes)", where "G" is the abbreviation of "GB", indicating that there is a capacity space of 2048MB bytes (of course, the capacity of memory is something you can't simply call, It requires a knowledge of programming techniques or software to perform special operations on memory memory.
What is a Super G business card? It is a business card based on a new generation of real-time communication technology on the Internet, audio-visual communication, live broadcast and artificial intelligence, which can speak and write, draw and sing, and sound and film, so that you can use **, video and audio to show your personal brand and corporate image, and let the business card speak for you. >>>More
What is a 3G License?
The license to operate a new generation of mobile communication systems that combine wireless communication with the Internet and other multi-level communications. >>>More
If you look at whether it is a lowercase g, if it is 20g, the meaning is: >>>More