What does coooo21a mean? Could you please be careful? 15

The density of bai agent, the above purity is about the same, according to the temperature zhi see very clear like distilled water, smell a faint dao fragrance, burn no impurities to find a professional back to the manufacturer, change the professional answer industry intelligent car dual-fuel control system, will not have problems in the middle of the methanol car modification, not simply add a controller can.

Because methanol is the most economical pure burning, methanol has requirements for oil pumps, liquid level devices, fuel filters, etc., and methanol should be of above purity!

Now it has begun to be promoted in some provinces, because the traditional pump can be modified as long as the car is an electric injection gasoline vehicle, the intelligent car dual-fuel control system, which can intelligently or manually control the double oil circuit, can be pure methanol or gasoline, and can also be blended and used, and the methanol should be burned with a squirrel cage inverter fuel pump, which is more economical and environmentally friendly than changing the gas safety and power. Oil is enough for human use for 3-4 years, natural gas for 4-5 years, coal for 200 years, methanol from coal is currently the easiest and low-cost!

The quality of the methanol, the quality of the solution.

Upstairs, why don't you say it's the motherboard, memory, hard disk, and CPU all have problems, and there are 21a You say so much nonsense, just let him throw away the host, forget it, and check a p, what's the difference between you answering like this and not answering.

What are you doing on your computer when you have a blue screen on your computer, can you tell us about it? I will tell you that what you say is more accurate than Mu Chang.

The content of the blue screen** or event viewer is incomprehensible to ordinary people, please explain your performance in front of the blue screen and your operation in detail (I will re-follow you according to the information you provided).

Generally, the blue screen is caused by your own incorrect operation, remember not to do the operation that is easy to cause the blue screen. The computer should not operate at full capacity, that is, when playing games, watching, watching, and watching web pages at the same time, it is most likely to crash and blue screen, so don't operate other things when playing games, watching, and watching web pages.

No matter what you're doing, as soon as there is a sign of a card, stop the operation at hand and quit the trial, so that you won't be coincidentally blue screen, if it's still like this, don't play or don't watch it.

Hardware: If the memory is small** memory module, whether the hard disk has bad sectors, whether the hardware is incompatible or faulty, use Master Lu to test whether the temperature of the CPU and other hardware is high.

90% of the blue screen is caused by improper operation and use of the computer, the card is the root cause of the blue screen, it is easy to cause the operation of the card not to do, the blue screen will be avoided or the blue screen will occur less.

It's a paragraph of changing the password**,Modify no exception returns true,Otherwise, return false,Its return type is map,And use generics,From the literal meaning of the return value, it is intended to return the bool type,But the actual value uses the string type,String and bool are subclasses of the object,If you guess correctly, the author is reserved with object to expand the space。 Just use whatever type is returned to accept it, that is, map, and convert the value from object to bool or string after returning, and convert it according to the program variable type later in this program.

c str is to convert the object to an array, for example, we know that strlen is only used to take the length of the char type string, l=strlen(chr)If you want to use strlen to get the length of a string string, you need to convert it to char with c str(), as follows:

strlen(

SPHC-P, Japanese grade, low-carbon hot-rolled steel, pickled plate (for cold forming), also produced by domestic Baosteel, Masteel and other manufacturers;

Mainly used for hardware sheet metal; Because of its good elongation performance;

Main components: C SI MN P S ALT Mechanical properties: tensile strength is not less than 270MPa, elongation is not less than 27-31% according to thickness;

It is equivalent to 08 steel in our country.

The grade of SPHC is actually the first German brand, and it is also used in Japan, and later introduced by the domestic steel mill Baosteel, which represents the hot-rolled steel plate (its corresponding cold-rolled plate is SPCC), which is equivalent to the national standard GB699 (national standard for high-quality carbon structural steel) in the 10 steel hot-rolled plate, and their carbon content range is about about.

SPHC and Q235 are not interchangeable, because Q235 follows the national standard GB700 (national standard for carbon structural steel), if only in terms of carbon content, SPHC and Q215 are the same.

p indicates the chemical element phosphorus.

25 represents the mask i.e.

is the representative CIDR block.

A subnet mask is a 32-bit address that is used to mask a portion of an IP address to distinguish between network and host identities and to indicate whether the IP address is on a local area network or a remote network.

Determine the number of subnet masks: The number of bits used for subnet masks is determined by the number of possible subnets and the number of hosts per subnet. Before you define a subnet mask, you must figure out the number of subnets and the number of hosts that would otherwise be used.

The steps to define a subnet mask are:

a. Determine which group addresses are used by us. For example, the network number we apply for is ", the network address is a Class C IP address, the network identity is ", and the host identity is ".

b. According to the number of subnets we need now and the number of subnets that may be expanded in the future, the subnet mask is defined with some bits of the host. For example, we need 12 subnets now, and we may need 16 in the future. Use the first four bits of the third byte to determine the subnet mask.

The first four bits are all set to "1", that is, the third byte is "11110000", which we will call the new binary subnet mask for the time being.

c. Set each bit of the corresponding initial network to "1", that is, the first two bytes are set to "1", and the fourth byte is set to "0", then the discontinuous binary form of the subnet mask is: ".

d. Convert this number into discontinuous decimal form as: " This number is the subnet mask of the network.

The meaning of 0 to 25 is that is

First of all, the so-called silk is a common saying in the mold industry, and the unit conversion formula is 1mm=100 wires;

Generally, the mold has a central axis, so 5 wires on one side means that 5 wires are added to each of the left and right sides, a total of 10 wires; And the bilateral 5 wires are that there are a total of 5 wires, unilateral wires.

For example, if you want to process a shaft with a diameter of 50 mm, and let you unilaterally enlarge 5 wires when processing, then the shaft is processed to a diameter of 5 wires.

Unilateral 5 wires are gap amplification, bilateral 5 wires are bilateral gap amplification, and mm is the meaning of millimeters.