What is compassionate earthquake control?

Magnetic resonance, MRI for short, is also a kind of imaging. It is the first choice for brain diseases, nervous system, bone and joint tumors and hydrops, but it is not sensitive to abdominal cavity, pelvic cavity and chest cavity. CT is the first choice for examination of trauma and bleeding. X-ray is the first choice for gastrointestinal fractures. Each has its advantages and disadvantages. The advantage of magnetic vibration is that it has no radiation and belongs to nondestructive testing.