英语语法分析

Based on the thermal guide theory, we analyzed the melting progress with the cylindroid model in the optical fiber LPHVD (laser plasma hybrid vapour deposition) process.

利用热传导理论，结合LPHVD工艺，在圆柱体模型基础上分析了光纤工艺中激光熔融过程。

This paper propose the analytical solve of effective factor of one-dimensional cylindroid catalyst, which takes an one-order inreversible reaction, by using special functions.

利用 特殊函数求出了一维圆柱形催化剂在等温一级不可逆反应中的效率因子，并对其渐进方程和普遍化效率因子进行了讨论。

According to the structural feature of parallel single disk gate valve, the strength and rigidity of body will be calculated with finite element method, and with cylindroid shell theory.

根据主闸阀结构特点，分别用有限元法和椭圆柱板壳理论公式计算了阀体的强度与刚度，并进行了分析对比，同时对闸板的刚度进行了校核。