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All Ultrasonic, Optical, Electronic Equipments Question

The use of ultrasound in the ultrasonic instrument
2 answer
What is the safety value of electromagnetic radiation?
3 answer
What is the difference between ultrasonic and electromagnetic waves, what is the use of what, Kai far from what age
0 answer
The application of ultrasound in agriculture
0 answer
Four-dimensional color Doppler in the end there is no radiation?
4 answer
What are the hazards of hydropower stations to people?
4 answer
I am doing the optical module test and power test there are communications equipment testing,
3 answer
Light, heat, sound, electromagnetic waves, these radiation, which radiation damage
3 answer
Are all factories required to carry out environmental impact assessment of radiation equipment?
3 answer
Is the hair dryer radiated?
3 answer
Does the wireless network radiate against pregnant women?
3 answer
What is the biggest difference between electromagnetic radiation and charged particles?
2 answer
My house behind the installation of two telecommunications box, there is a mobile light to pay the wall of the wall, I would like to ask the radiation is not big 10
3 answer
Will the digitalizer, such as reading the input device,
3 answer
Every day facing the computer screen 12 hours, what harm the body!
5 answer
How many meters of high voltage tower radiation? 10
2 answer
As long as the electricity of the machine, have radiation?
3 answer
What is the radiation in front of the refrigerator?
3 answer
On the computer time to see a long time to vomit, which know how this is going on? The B
2 answer
In front of the computer for a long time what harm?
3 answer
Does the computer not turn on the power supply only?
3 answer
Briefly describe the conditions under which light radiation is generated
3 answer
Home installation of solar power equipment, radiation on the human body?
3 answer
How long is the telecommunications fiber cat radiation?
3 answer
Computer radiation on the human facial skin have those injuries?
2 answer
Does the telecommunications fiber cat have radiation?
3 answer
Computer, television, mobile phones, microwave radiation is how much, what harm to the human body
1 answer
Does the refrigerator radiate?
3 answer
What is the concept of static electricity and radiation?
3 answer
Ultrasonic cleaning equipment
4 answer