脉络 (mài luò): หลอดเลือดแดงและหลอดเลือดดํา

By feeling the pulse at the wrist, a practitioner of traditional Chinese medicine can understand the condition of the meridians and vessels within the body.

The thread of this history book is very clear, covering everything from prehistory all the way to modern times.

The doctor carefully examined the blood vessels in the patient's leg and found that some were blocked.

The subway network of this city extends in all directions and can reach almost all major areas.

In the report, he first sorted out the overall structure of the project, and only then introduced the specific details.