例句與造句

1. Curved bottom chord
   曲線形下弦桿
2. The research information of the slab that has been used for forepassed decades is extremely few . there is a lack of the method of calculating load bearing capacity of slab with slightly curved bottom in our bridge criterion
   在過去的幾十年中，微彎板的研究資料極少，我國橋梁規(guī)范中尚無微彎板的承載力的確定方法。
3. Because it is simple to make manufacture slab with slightly curved bottom , and is economical to use steel , and is relatively great in aspect of load bearing potential capacity , the slab often has been used as braced arch and rigid - frame arch bridges " deck slab in 1970s and 1980s
   由于微彎板具有制作簡單、用鋼量省、承載潛力較大的優(yōu)點，因而上世紀七、八十年代，在剛架拱橋、桁架拱橋中常用作橋面板。
4. On the basis of the test and finite element analysis , and on the experience of exsting research payoffs , this paper advance the method of calculating load bearing capacity of slab with slightly curved bottom considering membrane effect of the slab , and deduce the corresponding formulas
   在試驗和有限元分析的基礎上，借鑒已有的研究成果，本文提出了考慮薄膜效應時確定微彎板承載力的方法，并推導出相應承載力計算公式。
5. The mass of the slab have diseases in varying degrees by investigation , so the problem faced us is to strengthen and remake the slab . in addition , the slab will be used in underdeveloped region of our country . therefore , it is very important to evaluate the load bearing capacity of slab with slightly curved bottom
   微彎板在橋梁中使用已有三十多年，在調查中發(fā)現(xiàn)大多微彎板都存有不同程度的病害，也就面臨著對舊橋微彎板的加固改造的問題；另外，在我國某些經濟尚不發(fā)達地區(qū)的橋梁建設中仍在采用，因此，對微彎板的承載力的正確評定也顯得十分重要。
6. It's difficult to find curve bottom in a sentence. 用curve bottom造句挺難的
7. To evaluate load bearing capacity of slab with slightly curved bottom , and provide scientific basis for strengthening and remaking and designing the slab , this paper discuss the method of calculating load bearing capacity of slab with slightly curved bottom according to the ministry of communications " scientific research project , that is technique research of detection , evaluation and strengthening and its spread
   為了對其承載力做出較正確評價，并能為加固改造、設計提供科學依據，根據交通部《公路舊橋檢測評定和加固技術研究及推廣應用》科研項目的要求，本文對微彎板的承載力確定方法進行研究。
8. In solving the helmholtz equation in the acoustical waveguides with a curved bottom , slow convergence may occurs when the linear local orthogonal transformation is adopted . in this paper , a class of nonlinear local orthogonal transformations ( nlot ) is proposed . it is an approach to improve the slow convergence mentioned above
   本文嘗試通過在深度方向選取非線性局部正交變換，將曲底求解區(qū)域化為平坦求解區(qū)域，然后求解helmholtz方程的辦法，來改善用線性(深度方向)局部正交變換時，步進求解時會出現(xiàn)的局部收斂慢的問題。