包绕的的英文

例句与用法

1. Whereas pigments are able to alter a petal ' s colour even when they are inside a vacuole , because the cell contents surrounding the vacuole are transparent , smelly molecules must find a route to the sniffer ' s nose by getting out of the cell and evaporating
   色素即便是位于液泡中，它也能改变花瓣的颜色，这是因为液泡外包绕的细胞内容物是透明的，而气味分子必须穿过细胞并挥发才能为闻者所闻。
2. The optimization design of portal crane luffing system is the result that optimization design apply in engineering design , but because the engineering problem is complicated , the traditional optimization design method is not very successful . in this paper , the optimization of the single boom system with compensating pulley and level - balancing weight is studied . in the math model , the wire rope length encircled in the pulley and reel is considered , that enhance the optimization precision and introduce genetic algorithms , combine engineering tightly , that settle the difficult in the traditional optimization successfully
   门机变幅系统优化设计是将优化设计方法应用于工程设计中的产物，但由于设计工程问题的复杂性，采用传统的优化设计方法优化的成功率及效果并不理想。本文以单臂架变幅机构导向滑轮补偿系统和杠杆? ?活对重臂架自重平衡系统的独立模型及综合模型为研究对象，考虑了滑轮和卷筒处包绕的钢丝绳长度变化，从而提高了优化模型的精度，同时引进一种新型优化算法? ?遗传算法，紧密结合工程实际，较为圆满的解决优化过程中存在的问题。