例句與造句

1. We analyze the assembly model and propose a mathematics model and tree - representing model of the assembly who not only has a small data size , but also can be manipulated easily . this thesis not only gives the virtual representing concept the instance representing one , but also defines the concept of assembly constraint such as coupling , being alignment , being coaxial and being equidirectional . based on such concepts , a revised newton - raphson iterative algorithm is proposed , which can deal with the singularity and ill - condition of jacobi matrix
   首先分析了裝配體的模型問(wèn)題，提出了裝配體的數(shù)學(xué)模型及樹(shù)形式表示的裝配體表示模型，模型具有數(shù)據(jù)量小、操作簡(jiǎn)單的優(yōu)點(diǎn)：文章對(duì)所涉及的約束諸如耦合、對(duì)齊、同軸、同向的裝配體位置描述概念進(jìn)行了定義，引入了裝配約柬概念，從而提高了裝配設(shè)計(jì)效率；在此基礎(chǔ)上，文章討論了裝配約束的求解方法，提出了newton rapson迭代法的改進(jìn)算法，使得系統(tǒng)能更好地處理jacobi矩陣的奇異和病態(tài)的情形。
2. It's difficult to find equidirectional in a sentence. 用equidirectional造句挺難的