必须是有模式的
You must close all modal dialog boxes before closing this document.
关闭此文档前,必须关闭所有模型对话框。
While traditional modal strain energy methods must compare the modal information from the same ith mode for the baseline ( analytical) and damaged ( measured) structures, such constraint isn't required for the CMSE method.
传统的模态应变能方法是将损伤前后的同阶模态进行比较,而CMSE方法没有这个限制。
Can, may, might, must, should , and would are modal auxiliary.
can, may, might,must, should和would是情态动词.
英语网 · 双语娱乐资讯
英语网 · 双语新闻
英语网 · 初中英语语法
英语网 · 中考英语
英语网 · 日常口语