愛麗絲是襠坡的延伸，它的主要功能是滿足人類活動(dòng)的需求，在日常生活和工作中，人體彎腰、蹲、跨、跳、走、等作用（見圖表12），影響上層襠的自然延伸，所以在愛麗絲作為褲襠必不可少的部分。所謂的后襠坡，指垂直線、中襠褲后，從定理邊坡的襠后，由相互區(qū)別和臀圍的褲子腰圍決定的，在同等條件下臀圍，腰圍越大，襠坡度�。貉鼑�。座位越大（見圖13），導(dǎo)致愛麗絲后變化，愛麗絲后水平坡度后襠決定）。
愛麗絲高度設(shè)計(jì)后一般控制在3～6厘米以內(nèi)，但也有其自身變化的條件，它的斜率越大，愛麗絲越高；斜率越小，愛麗絲越�。ㄒ妶D14），愛麗絲和斜率就越是一致。坡度、縫長后襠傾角增大的同時(shí)，邊緣臀部有更多的能力也會(huì)增加活動(dòng)。
愛麗絲的選擇后，根據(jù)大小和習(xí)慣需要處理，有時(shí)也會(huì)產(chǎn)生這樣的矛盾，腰部和臀部接近甚至相等，襠坡和愛麗絲高度分布是有限的，這就需要在前面的變化和褲子后，增加的比例，因?yàn)榍叭�，所有的脂肪，脂肪，心臟，腹部飽滿，確保正常后襠坡度、平衡的腰部和臀部�？傊魏涡螤畹暮蠼�，必須掌握超過90度直角，最佳狀態(tài)為92度，與nbsp94度為宜（見圖15），以確保后襠、腰平。
Alice is the extension of the crotch slope, the main function of it is to meet the demand of human activities, the human body in daily life and work, the stoop, squat, cross, jump, walk, wait for action (see chart 12), which affect the upper crotch natural elongation, so after Alice it as part of the trousers crotch essential. The so-called back crotch up slope, refers to the after perpendicular line and the middle crotch pants, look after the crotch of the slope from the theorem, is decided by the mutual difference and hip pants waist, hip size in the same conditions, the larger waist circumference, crotch slope is small: waist circumference is small. The seat is bigger (see chart 13), resulting in changes after Alice, Alice after the level of slope after crotch to decide).
After Alice height has been designed to control in general 3--6 cm) within, but it also has its own changing conditions, it is the law of the slope is larger, Alice is higher; the slope is small, after Alice is smaller (see chart 14), it is said after Alice and slope is agree with each other. The slope, seam length after crotch inclination increase at the same time, margin buttocks have more capacity will also increase activity.
After Alice level selection, according to the size and habit needs to deal with, sometimes also can produce such contradictions, the waist and hips close to or even equal, crotch slope and Alice height distribution are limited, which would require a change in the front and back of the pants, increase the proportion of the predecessor because, all fat, fat, heart, abdomen is full, to ensure the normal back crotch slope, the waist and hip balance. In short, any shape of the rear angle, must grasp more than 90 degrees right angle, the best state to 92 degrees - 94 degrees is appropriate (see Figure 15), so as to ensure the back crotch and waist flat.
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