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- principal elastic axis 主弹性轴
- If this load centroid is behind the elastic axis of the wing structure, then a nose-down twist of the main wing surface results. 如果该载荷重心在机翼结构弹性轴之后，则引起主机翼表面前端向下的扭转。
- The broke the door in with axes. 他们用斧子劈开了门。
- 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。
- The agent spoke on behalf of his principal. 代理人代表他的委托人说话。
- The heavy ax was awkward to use. 这把重斧头不好用。
- 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。
- The firemen splintered the door with an ax. 消防队员们用斧头将门砸开。
- It snapped back like a piece of elastic. 它像一条橡皮带那样迅速弹回。
- Our principal problem is lack of time. 我们的主要问题就是缺少时间。
- The man cleft a block of wood in two with an ax. 那人用斧头把一块木头劈成两半。
- 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 got the ax from Mary-they won't see each other again. 约翰被玛丽拒绝了－他们从此不再来往。
- John informed the principal against Paul. 约翰向校长告发了保罗。
- All elastic materials possess this property to a certain degree. 所有弹性材料在一定程度上都具有这种特性。
- 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。
