Anti-theft, anti-fraud and anti-robbery in the "Spring Festival Outing Complete Help Manual"-Anti-fraud

Bad faith fraud: Such cases mostly happen on long-distance buses or trains. The most common method of fraudulent fraud is to chat with the people riding on the vehicle. The perpetrator set out the privacy of the victim ’s home address, telephone and other privacy information in a chat, and then called the victim ’s home, saying that the victim had been in a car accident and was living in a hospital in a certain place. Remittance of the provided account in order to save people.

Precautions: Do not mention your family situation with strangers in the car, especially the privacy of your home address and phone. If you encounter news that your loved ones "have an accident" in your family, you must conduct a comprehensive verification and don't believe it.

Anti-fraud on the street: Picking up money and distributing money is a common method used by perpetrators, and every time someone is fooled. Perpetrators often take advantage of people's weakness for money. Someone will throw an envelope or parcel at the foot of a passerby. When the passerby opens and sees there is a lot of money in it, the perpetrator steps forward and pulls it to a remote place, demanding that the two be divided equally. At this time, another perpetrator suddenly appeared, saying that the money he had lost was his own and demanded a refund. The perpetrator who picked up the bag at the moment said that he did not find it and asked the passerby to take out his money or bank card to show his innocence. During this period, the two perpetrators used their hands to mobilize the victim's money.

Precautions: Don't be greedy for cheap, don't pay attention when someone drops a package or envelope, when someone entangles with this, you should call the police in time.

Vacuum rotary evaporator


The purpose of the rotary evaporator rotovap is to remove low boiling organic chemicals, usually solvents, from a mixture of compounds .

The rotary evaporator always for distillation and extraction under vacuum pressure . The motor runs the rotation flask moving and heating water oil bath pass hot energy to the mixture of rotary flask . Then low boiling point of mixture will be heated and form a thin film and make evaporation . The lower boiling point mixture make morphological change from liquid to Vapor or hot air . Then hot vapor meet condenser cooling coil then become liquid again and fall down to collection flask .


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