The contents of these elements varied from silk gland to different kinds of silk fibers ( i . e . cocoon silk , forced - drawn silk and degummed silk ) , and the changes of element content might correspond to the effect of these metal elements on the spinning process ( conformation transition of silk fibroin ) of b . mori silkworm 这些金属元素在丝腺体和各种丝纤维（蚕茧丝、强拉丝和脱胶丝）中的含量都有所变化，而这些变化可能与之在成丝过程（丝蛋白的构象转变过程）中所起的作用有关。
In this paper , the residual strength of debonded honeycomb structures and their repaired structures is calculated . the influence of many kinds of parameters of the residual strength and the technique of its repair is discussed . the work includes four parts as following 本文对含脱胶损伤复合材料蜂窝夹芯板及其修补结构板芯脱胶的剩余强度进行了计算，同时对蜂窝夹芯结构的各种参数对其剩余强度的影响以及修补技术做了一些研究和探讨，主要做了以下几个方面的工作： 1
