Kneel for a background picture of the prison height line.

The background map of the prison height line is shown in this article.

a height ruler, as its name implies, is a ruler used to measure height. According to the classification of materials, there are paper height ruler, metal height ruler and wooden height ruler, etc. According to the purpose of classification, there are height ruler wall charts, height ruler photo albums and so on.

During the height test, stand barefoot, with the upper limbs drooping naturally and the lower limbs close together. Then, move the sliding ruler down along the post, lightly press the tester's head, and record the reading.

Height:

Height refers to the vertical distance from the vertex (V) to the ground. Generally speaking, the unit is centimeters (cm), and "meter" (m) is often used.

Height is the length of the longitudinal part of the human body, which originates from the longitudinal growth of the human body and is greatly influenced by genetic factors. The height of girls develops earlier than that of boys, with a rapid growth period at the age of 12-13, and stops growing at the age of 19-23, while the height of boys develops later, with a rapid growth period at the age of 15-16, and stops growing at the age of 2-25. The long bones and vertebrae of limbs have been ossified, and the height stops growing.