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- The bark of plane trees peels off regularly. 悬铃木的树皮到时候就脱落。
- They had to accept the blue pencil of the censor. 他们不得不接受检查员的修改。
- We like the masterly pencil of Rembrandt. 我们喜欢伦勃朗的精巧画法。
- The first pair of planes veered off to the left. 第一队飞机转向左边。
- A number of planes were circling overhead. 数架飞机在上空盘旋。
- We have bought some new types of planes. 我们买了几。
- A number of planes were circling overhead . 数架飞机在上空盘旋。
- Axis of a pencil of planes 平面束的轴
- Shape likes as the head of plane,domes are colored. 飞机头式外形，有色外罩。
- harmonic pencil of planes 调和面束
- pencil of planes 面束
- They have made great effort to lessen the noise of planes. 他们尽力减小飞机的噪音。
- My spare time is taken up with jumping out of planes. 我的业余时间都用在了跳伞上面。
- This type of plane now flies the Atlantic in a few hours. 这种类型的飞机现在只用几个小时就能飞越大西洋。
- They've made great effort to lessen the noise of planes. 他们尽力减小飞机的噪音。
- Where ought I to go to inquire about the times of planes to China? 我到哪个窗口可问到中国的飞机航班时间?
- They have made great effort to lessen the noise of planes . 他们尽力减小飞机的噪音。
- The plane climbed until it was clear of the clouds. 飞机爬升穿出了云层。
- By using the projective geometry,some schemes for generating rational curves from pencil of lines are investigated in this paper. 采用射影几何学方法，研究从直线束生成有理曲线的技术方案。
- The fleet of planes were being auctioned off by the creditors. 这个机队正在由债权人拍卖。
