1/2 hem(at shirring-relaxed)armhole(along curve)sleeve length(from shoulder point to hem-shirring relaxed)1/2 uprarm slv girth1/2 sleeve opening-3/4sleevefeature sleeve shirring line length(up from hem-relaxed)neck width(neck seam to seam)front neck drop(from HNP to CF neckline-not including collar)back neck drop(from HNP to BF neckline-not including collar)Collar depth (at CB)centre front button placket length(from CF neckline to base)centre front button placket widthfirst button position(from CF neckline)distance between buttonshem shirred basque depthback yoke depth(at center back)front length(from HNP to hem)HNP、shirring relaxed是代表什么意思?