目录 Peoples Life 1 What does “Beijing time eight oclock" mean? 2 Does eye protection lamp really protect eyes? 3 What is the area of 1 tatami? 4 How to measure the area of commercial housing? 5 What are the mysteries of the “scale” in the farmers market? 6 How tight is the "tightening bolt"? 7 Do you understand the connection between non-stick pan and metrology? 8 Is the rope of the ropeway safe? 9 Why are the glasses so clean after the “washing" in the optical shop? 10 How much harm does the mosquito repellent product pose to the human body? 11 Do you know the "power stealing thief" at home? 12 What does "net content" mean on the package of goods? 0 13 How is the pressure in household tap water formed? 14 Why do people feel chest congestion on rainy days? 15 Why cant you break an egg in your hands? 16 What is IC card water meter? 17 What are the characteristics of LED lights? 18 How to choose a charge pal? 19 How to choose energy-saving lamps? 20 What determines the clarity of the phone photo? 21 Why is the water not boiling at high altitudes? Energy Saving 22 How does an air cleaner clean the air? 23 Focus on "Qizhi" 24 What is a master "Zhen Tan"? 25 Is the nano coating actually related to a lotus leaf? 26 What does China Energy Label on household appliances mean ? 27 Is the nominal Horse Power exact in practical use? 28 Does the standard coal really exist in nature? 29 Why does Tesla receive a penalty for exceeding its carbon emissions? 30 How to scale heat metering in winter? 31 What kind of electric kettle is energy-saving? 32 Misunderstanding about energy-saving in the use of air conditioner 33 How to realize heat preservation in building decoration? 115 34 How to measure the “carbon” of carbon emission? 35 Does it work that a magnet can slow a water meter? 36 What is the role of heat meters in heating metering? 37 Are household water-meter, ammeter and gas meter accurate? 38 Common sense about household gas use and exception handling 39 How to determine the number of indoor radiators? 40 Does it save money to equip household heating metering in every family? 41 How can we get the amount of water used showed in the water meter, without a person at home? Traffic and Travel 42 Is the ride-hailing service accurate? 43 Can "exhalation measure the amount of ethanol present in the breath? 44 Who is monitoring the car for speeding? 45 Where is the thief for taximeter? 46 How to judge the overload of the truck? 47 What is the metrological function of "traffic light"? 48 How to evaluate the value of used cars from a metrological perspective? 49 Is the length of the object related to its motion state? 50 How to evaluate the car configuration from a metrological perspective? 51 Does Jump nozzle" affect the amount of refueling? 52 What is the trick of"short in weight” in fuel dispenser? Green Health 53 Is X-ray and CT examination a serious hazard to peoples health? 54 How to measure medical radiation? 55 Why is food safety inseparable from reference materials?203 56 Setting a fox to keep the geese - does decoration do harm to our life? 57 What is the difference between color Doppler ultrasound and ordinary B-mode ultrasound? 58 How to determine the "soft" and “hard" water quality? 59 How to choose a home ventilator as needed? 60 How to choose the suitable home fetal heart rate monitor? 61 How to choose home blood glucose meter? 62 Why is ultrasound diagnosis needed? 63 Which sphygmomanometer is better for home use? 64 Is your helmet safe enough? 65 Which thermometer is safer to use? 66 How is blood pressure produced? 67 How to monitor the ambient temperature when processing food? 68 Why are the ℃ and °F values of the temperature so different? 69 How to use and maintain home hygrothermograph properly? 70 Do you know how to read the thermometer? 71 Do you understand these measurement marks? 72 Is airport fever screening accurate? Times Technology 73 Why is the World Metrology Day on May 20th? 74 Is it safe to use a wireless router? 75 Can the phone be answered with headphones to prevent radiation? 76 How long is “1 second"? 77 What does “leap second” mean in terms of time measurement? 78 How quiet is it when someone says "I want to be quiet"? 79 How sensitive is the smoke alarm in the office? 80 A metering view of PM25 81 How to measure wind speed? 82 What is nanometer? 83 How long is 1 meter"? 84 How to measure hardness? 85 How does sound emerge and spread? 86 Do you know how to measure the area of land? 87 What are "benchmark" and "standard" in metrology? 88 What are "verification" "calibration" and "detection"? 89 What is the mysterious point" in precise temperature measurement? 90 Do you know the connection between nanometer and central processing unit (CPU)?
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