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- negative principal plane 负主平面
- negative principal planes 负主平面
- A brief and quick illustration in locating the orientation of principal planes is deduced from analysing plane stress by using Mohrs circle. 根据平面应力分析的应力圆法推证出一种判定极值应力平面方位的简捷作图法。
- principal plane of extraordinary rays 非常光主(轴)平面
- principal plane of ordinary rays 寻常光主(轴)平面
- In every state of stress there exist at least three principal planes, which are mutually perpendicular. 对每一种应力状态，至少存在三个主平面，它们互相垂直。
- The plane climbed until it was clear of the clouds. 飞机爬升穿出了云层。
- The flier is flying a new-type jet plane on trial. 飞行员正在驾驶一架新式喷气机作试验飞行。
- The landscape unrolled under the speeding plane. 大自然的景色展现在快速飞行的飞机之下。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- Mary would rather travel by train than by plane. 玛丽宁可乘火车而不愿乘飞机旅行。
- The principal shareholder ask for a meeting. 主要股东们要求召开会议。
- The plane stop over in Lyons on the way to Paris. 这架去巴黎的飞机在里昂中途停留。
- The agent spoke on behalf of his principal. 代理人代表他的委托人说话。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- Are you going to America by boat or by plane? 你到美国是坐船还是坐飞机？
- Keys are available on application to the principal. 向校长申请就可得到钥匙。
- The plane taxied along the tarmac. 飞机沿跑道滑行。
- She's been downgraded (from principal) to deputy. 她已(从校长)降为副校长。
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
