April 27, 2021

The most powerful calcium food, in addition to cow's milk is it, cost-effective, households can eat


I firmly believe that many partners and small, usually pay close attention to the intake of calcium, because the lack of calcium will endanger many aspects of the human body, including children do not grow, or adults foot cramps and other conditions, in fact, in the end all the lack of calcium, in our daily lives, it is likely that most of the normal meals in all can not get enough nutrients and calcium, this time, it should be in the In fact, this mix can be the most calcium and zinc is seaweed, seaweed as a seafood product, with a colorful calcium composition, often eaten can also increase resistance and immunity, which is conducive to the growth and development of children, adults, calcium and zinc. If you are interested in learning more about seaweed, come and learn with me!

牛角飯

Bluefin tuna seaweed with rice

Seasoning.

2 bowls of refined rice, 2 pieces of seaweed, 1 can of freshly dipped bluefin tuna, 2 spoons of salad dressing, 1 small dish of white sesame seeds

Cooking process.

1. Just received the fresh rice, open the bag you can smell the wheat aroma, used to do mixed rice is particularly suitable.

2. The seaweed used is a block of seaweed, itself with a cutter to cut the small can

3. Tuna cans open reserved

4. Prepare all the raw materials, white rice than the usual cooking water flow is slightly smaller, rice is very fresh.

5. Sprinkle seaweed, lay flat bluefin tuna, and then sprinkle white sesame seeds

6. Finally squeeze on the highlights: salad dressing (you can also use thousand island dressing, etc.), but I think salad dressing is more delicious

Cooking tips.

1: canned tuna is sold in the mall, there are many types, here I strongly recommend to everyone, as far as possible in the mall to buy, buy the upper middle price of canned tuna, that can better ensure the quality of goods, eat up more at ease. 2: in the case of shopping for seaweed, do not have to buy the seaweed sold in the mall has been made into snacks, can choose from the Internet, some can be for small children to eat, seaweed sandwich chocolate. The first thing you need to do is to get a good idea of what you want to eat.

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April 12, 2021

PCB pad design of essential common feeling?


Inside the PCB part structure, the designer ought to look at the minimum amount interval involving factors relative towards the variance in element thickness, ordinarily, the interval for much larger electronic factors to extend to stay away from the addition of thin elements and in the long run induce welding problems. Next, the factors by means of the direct gap to the PCB, with solder welding fixed to the PCB, printed wire to attach the pads to accomplish the electrical link of your elements within the circuit. Inside the system of soldering if you don't recognize this aspect of the folks might be simple to wipe out the pads within the PCB, seriously bringing about the scrapping of the entire board, the following I'll speak for you with regard to the pads of some simple popular sense.

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The aforementioned, the elements by way of the PCB guide hole with solder welding mounted within the PCB, then the guide gap plus the encompassing copper foil is called the pad, it really is the essential part device on the surface mount assembly, utilized to type the pad sample of your circuit board, which is, a number of pads developed for special component varieties of mixtures.

We have a typical pad shape square pad, that is definitely, the printed board parts within the big and compact, and printed wire easy when in excess of used. Within the guide self-made PCB, the usage of these kinds of pads uncomplicated to accomplish. There is a circular pad: widely utilized in the regular arrangement of parts, single and double-sided printed boards. When the density of the board makes it possible for, the pads is often larger sized, welding doesn't tumble off.

PCB pad dimensions style also has the corresponding regular, that is definitely, all pads on a single aspect with the least not a lot less than 0.25mm, your entire pad diameter is not greater when compared to the greatest diameter in the component aperture three instances. Inside the scenario of denser wiring, it is encouraged to work with oval and rectangular connection plate. Solitary panel pad diameter or minimum width of one.6mm; double panel weak line pads only hole diameter moreover 0.5mm can be, pad as well big easily brought about by unnecessary even welding, aperture diameter of over one.2mm or pad diameter of more than 3.0mm pad need to be built for diamond or plum-shaped pads. All organic and natural insert parts have to have to generally be intended together the route in the bent foot for that drip pad, in order that the bent foot for the solder joint is comprehensive. Big space of copper skin about the pad ought to be used daisy pad, never to phony solder.

Exclusive awareness is paid out to handbook soldering around the PCB, recall never to make use of a pretty superior temperature soldering iron or solder furnace procedure over the pad, mainly because it is not hard to lead to the pad off and can not be remedied.

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