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- Though 37 years passed after the double arch and flat shell structure applied in the water power engineering, the rubber canvas faceplate has never been used. 薄壳空间结构具有很多优点,我国在水工闸门中使用双曲扁壳结构的历史已有37年,但尚未见到采用橡胶布面板的。
- The existing results, however, involve no local stability of shells.The fundamental objective in this dissertation lies in applying FPPM to solve the nonlinear local stability of dished flat shells. 但是，已有的研究成果没有讨论壳体局部稳定问题，本文的主要目的是采用自由参数摄动法研究碟形扁壳的非线性局部稳定问题。
- hyperboloid vierendeel latticed flat shell 双曲空腹扁网壳
- Double arch and flat shell structure 双曲扁壳结构
- The man jacked up his car to fix a flat tire. 那人用千斤顶把他的汽车顶起以修理漏气的轮胎。
- There is an ornament made of shells on the wall. 墙上有一个贝壳做成的装饰品。
- We found many beautiful shells on the shore. 我们在岸边找到了好多美丽的贝壳。
- He stumbled over a stump and fell flat on his face. 他给树桩一绊，摔了个嘴啃泥。
- The enemy's shells made great holes in the ranks. 敌人的炮弹在士兵行列中炸成大洞。
- He spread the map flat out on the floor. 他把地图平铺在地上。
- Snails are usually served in their shells. 蜗牛通常连壳被端上餐桌。
- Our present lease on the flat expires next month. 我们这套公寓的租约下月到期。
- Shells were bursting all around. 炮弹在四处爆炸。
- The flat will be refurbished for the new tenants. 这套房间将重新粉刷以接纳新房客。
- She is buying a flat close to her office. 她正在购买一套靠近她办公室的单元房。
- She lay flat on her back in the warm sunshine. 她在温暖的阳光下平躺著。
- The lease on our flat runs out in a few months. 我们公寓的租约还有几个月就到期了。
- The colours used are flat and unvaried. 使用的颜色既单调又无层次。
- Keep down of you'll be hit by shell fragments. 别起来，否则你会被弹片击中的。
