您要查找的是不是：
- flexural principal mode 挠曲主型
- Dynamic characteristics of collaborated system mainly include natural vibration frequency and principal mode,which is the base and precondition of dynamic analysis for collaborated system. 协作体系的动力特性主要包括体系的自振频率和主振型,它是协作体系结构动力分析的基础和前提。
- Principal modes of interannual and decadal variability of summer rainfall over South America. 南美夏季降水的年际，和年代际变化的主要模态。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- The principal shareholder ask for a meeting. 主要股东们要求召开会议。
- My letter will convey some idea of my mode of life. 我的信将使你了解到一些我的生活方式。
- The agent spoke on behalf of his principal. 代理人代表他的委托人说话。
- Keys are available on application to the principal. 向校长申请就可得到钥匙。
- She's been downgraded (from principal) to deputy. 她已(从校长)降为副校长。
- Our principal problem is lack of time. 我们的主要问题就是缺少时间。
- The spacecraft was in its recovery mode. 这艘飞船处于返回状态。
- She drank in every word of the principal's lecture. 她全神贯注地听校长演讲的字字句句。
- John informed the principal against Paul. 约翰向校长告发了保罗。
- He changed his whole mode of life. 他改变了整个生活方式。
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
- The principal discouraged unexcused absences. 校长不准无故缺课。
- Rubber is the country's principal export. 橡胶制品是该国主要的出口产品。
- The level of formality determine the precise mode of expression. 不同的礼节程度决定所需的确切表达方式。
- The principal has a very tight schedule. 校长的日程表排得满满的。
- Our school gave a reception to our new principal. 我们学校为新校长举行了欢迎会。
