SMT patch red glue is a rare compound. Unlike solder paste, It is cured after being heated.The freezing point temperature is 150 ℃.At this time, the red gel starts from the paste body to the solid directly.
SMT placement machine has viscosity fluidity, temperature characteristics, Wetting Characteristics and so on. According to the characteristics of the red glue, in production, the purpose of using the red glue is to make the parts firmly pasted on the PCB Surface, to prevent it from falling.
U
small, but all the towels and bath towels can be "added to Favorites" more than enough.
Refrigerator storage. The refrigerator is a relatively hidden and messy place in the house. You may wish to purchase a food tray shelf and put it in the refrigerator, which can be stacked to save space. When refrigerating fruits and vegetables, it can be placed upright on a s
The introduction of git is not much said. Here is just a simple entry-level operation.How to install, initialize, and perform simple operations and branch operations.Everything is simple, not reasonable, but simple operations.Original article, if reproduced, please indicate the source: http://blog.csdn.net/yihui823/article/details/6673804I. Preparation 1. Installation
Under Ubuntu:
Sudo apt-Get install git
Sudo apt-Get install gitk
Windows:
Msysgit
2. How many steps does initialization + put th
Lesson 1st-the door to advanced masters
Understanding the nature of a program
Programs exist for actual problems. Essentially, programs are steps to solve the problem.
Problem:
How to put elephants in the refrigerator?
(1) open the refrigerator door (2) Put the elephant in (3) Close the refrigerator door
Elephan * E = getelep ();
Int F = open ("fridge ");
Put
Half the Analects of Confucius create an EnterpriseWu Yan hasn't had a long time since he started his own business, but the ups and downs and joys and sorrows he has experienced over the past days are even more than the total. Sometimes he really feels tired, now he is deeply aware that he should strengthen his self-cultivation. Wu Yan used to have a habit of buying a book about inspirational or successful learning every time he encountered a career bottleneck. Therefore, these books are the mos
Purpose:Separate the abstract part from its implementation part so that they can all change independently.Implementation points:Separation and aggregation. Divides an object into two parts. They are maintained by aggregation.UML:
Code:In this example, the electrical switch function is separated from the switch function to adapt to different changes.
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Public Abstract Class SW{ Public
Very hungry in the morning. As soon as I got home, I rushed to the wheat and bought the wheat-flavored pork bread breakfast.Pig is delicious.Do not eat eggs, do not eat bread, do not eat potato cakes, do not drink coffee.I ordered another orange juice.Cool. I don't know whether it's frozen by orange juice or by rain.
When I got home, it was cold or hungry.Cold and hungry.I paid the bill for the whole morning.Dad is at work. Well, work to raise a family.Dad is the supporter.
Finally, the system i
, what time to do?" ”袁鸣: "The guests came around 10:30, and it was best to eat at 12 o'clock." Dishes are: cold dish platter, sweet and sour pork loin, West lake vinegar Fish, Kung pao chicken, steamed crab, fried rice slices, these are your specialty dishes, you can see? "Super Super:" No problem, look at me! "袁鸣: I have deposited these dishes in the BOM. Next, let me use the BOM to expand the method, to see what dishes are needed. Specific materials are: Carp A, crab a catty, lean 1 pounds, ch
, what time to do?" ”袁鸣: "The guests came around 10:30, and it was best to eat at 12 o'clock." Dishes are: cold dish platter, sweet and sour pork loin, West lake vinegar Fish, Kung pao chicken, steamed crab, fried rice slices, these are your specialty dishes, you can see? "Super Super:" No problem, look at me! "袁鸣: I have deposited these dishes in the BOM. Next, let me use the BOM to expand the method, to see what dishes are needed. Specific materials are: Carp A, crab a catty, lean 1 pounds, ch
March 11, the annual Home Expo opened in Shanghai, this year's home Bo will attract the enthusiasm of domestic home appliance enterprises to participate, and some new products to make the appearance of the home appliance industry is full of confidence. It is worth mentioning that the domestic high-end home appliance leader, Casa emperor, with the help of this home Expo released three subversive new products, its innovative ideas not only won the industry's wide recognition, but also heralds the
Array of initial knowledgeA network of deception lottery big secretThe following procedure is to be from Andy Lau "," Chow Yun-Fat "," Stephen Chow Chi "," Jay Chou "," Zhou Jie "," that English "," Liu Huan extract a person to obtain a prize, the normal lottery should be a way of procedure; improperLottery procedure (i) Fair procedure setting:static void Main (string[] args){//Lottery programString[] Xingming=new string[7]{"Andy Lau", "Chow Yun-Fat", "Stephen Chow Chi", "Jay Chou", "Zhou Jie",
class, and the specific brand of television is its sub-category.
Product Family: in the abstract factory model, product family refers to a group of products produced by the same factory, located in different product grade structure, such as Haier TV Haier electric factory production, Haier Refrigerator, Haier TV set in the TV product hierarchy, Haier Refrigerator is located in the
: Abstract Factory
Concretefactory: Specific Factory
Abstractproduct: Abstract Products
Product: Specific Products
In order to understand the factory method pattern more clearly, two concepts need to be introduced first:
Product Hierarchy Structure: Product hierarchy structure is the product's inheritance structure, such as an abstract class is a television, its sub-category has Haier TV, Hisense TV, TCL TV, the abstract TV and the specific brand of television constitute a pro
Big B, that is small B), and a Byte occupies 8 bits. What are the differences between 32-bit and 64-bit operating systems in terms of data processing? The minimum unit of 32-bit processing is 4 bytes, 64 is 8 bytes. There are many differences. We don't need to elaborate on them here. If you are interested, start Baidu !!!
In fact, the file operation is very simple, just like the steps for putting elephants in the refrigerator in Zhao Benshan's sketch
Original Works. For reprinted works, indicate the source By dknt From bbs.blueidea.com.Statement:1. This article teaches you how to implement the bar code on the web page, reflecting the idea of using the web page production technology to comprehensively solve the problem. It aims to consolidate the entry level for HTML, JavaScript, and PhotoShop users.2. If you have any questions, please wait. Thank you very much.3. Master is free of entry.How many steps can I create a barcode?Step 1: open the
What Is Object-Oriented:Personal analysis: in programming, object-oriented is a relative statement, relative to process-oriented;Oriented to "object": focuses on "object", while oriented to process: focuses on "process". Simply put, we consider things differently. For example: we judge whether a girl is beautiful or not. Some people value appearance, while others value "mind", but with different focuses.For example, put an elephant in a refrigerator!P
File operationsWe have heard a problem, the elephant into the refrigerator divided into three steps: 1, open the refrigerator door, 2, put the elephant in, 3, close the refrigerator door. The steps of the Python file operation that we're going to talk about today are like steps to put an elephant into a refrigerator.Basic steps for manipulating files using Python
C + + from the literal meaning of understanding, give people feel like a C language upgrade version.C Plus PlusBut C + + adds too much syntax.It's a lot more than that.Let's give an example:Suppose you put an elephant in the refrigerator.We write three functions respectively.Open the refrigerator door ()Put the elephant in ()Close the refrigerator door ()void Main () {Open the
first step, open the refrigerator door;
The second step, put the elephant into the fridge;
......
Step n, close the fridge door.
The boss looked, said who did not know the first step of the refrigerator door open AH! redundant! What should I do? Delete the first step, the second step to one, the whole number must be changed.
If you have 100 steps to do (think about the operation of the plant, more tha
The main idea: a refrigerator has 16 switches, square distribution (4*4 matrix), "+" means close, "-" means open, when all the switch is "-" when the refrigerator to open. When going to flip a switch, all switches in the column and row of the switch must be flipped, that is, turn off, turn off. Ask at least how many times you need to open the refrigerator.
#incl
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