To put it simply, saving is because the plane accidentally wraps the three-dimensional human body to produce redundant amounts, and the parts that often produce these amounts are mainly at the highest point of the chest, that is, the mastoid point, which is called BP point by clothing professionals; Waist line and shoulders.

Save the chest because there is a difference between the chest and the waist, and the clothes should be cut to remove the excess parts. The rescue point is generally 2.5cm below BP point.

Waist province is also produced for the same reason, and the lines of waist province determine the waist contour of clothing.

When you say "leading provinces", most of them appear when the provincial roads are transferred during garment making. Sometimes, for example, in a province, the amount of chest saving is very large and the lines are difficult to handle, so a part of the province is divided and rotated to the neckline around BP point. Dart transfer can also transfer darts to multiple parts, such as armholes, such as merging bear waist darts, such as pleating.

In addition, the back collar hole can also have darts, because the shoulder blades are three-dimensional, and there will be excess when wrapping the fabric. Therefore, the back neckline often handles darts, but the amount of darts is generally small. Sometimes, because of the style of clothing, it is also possible to transfer the sharpness of the back piece to the structural line of Ke Yu.