In this paper,basis on mechanical structure of certain minor caliber multiple launch rocket system and tactical demand of air defense and antimissile,it is analyzed in detail that friction torque, unbalanced moment ,impact moment of burning gas flow and variable rule of moment of inertia,which provide the foundation for more research of position servo system of multiple launch rocket system.

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The paper reviews the development in the analytical theory of mechanical behavior of composites, pointing out the problems existed, presenting creatively the concept of yarn state, solving the descriptive problem of perform structure of any woven composites and laying the foundation for predetermining the elastic behavior of 3-d woven composites with computer. On the basis of yarn state, the relative cross section deformation theory is introduced, the yarn cross section deformation is studied, and the experiential formula is described in the paper on the basis of experiment. The crimping state of yarn is studied, the classical "straight warp view"is modified, and the crimp height value of crimped yarn is studied. At the same time, with shrinkage rate sine method, the paper proposes the idea which imitate the shape of crimped yarn. With the third power template curve, the paper describes the microgeometry structure of fabric, finding a brief and precise approach for the calculation of mechanical behavior of composites.

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this paper basis on the current codes,taking axis compressive resistance concrete column bearing capacity formula as constraint condition., taking cost as objective function, taking reinforcement diameter and concrete strength grade as design variables, giving an optimization design, got the best basic parameters which satisfied application conditions,to provide better calculation for the axis compressive resistance concrete colum design.

本文以現(xiàn)行規(guī)范為依據(jù)，以混凝土強(qiáng)度理論推導(dǎo)出的軸心抗壓混凝土柱的承載力計(jì)算公式作為約束條件特级激情AAA片，以造價(jià)為目標(biāo)函數(shù)欧美熟妇性XXXX交20p，以混凝土中的鋼筋直徑、混凝土強(qiáng)度等級(jí)為設(shè)計(jì)變量乱论强奸欧美，對(duì)其進(jìn)行優(yōu)化設(shè)計(jì)得到了滿足使用條件下的最優(yōu)基本參數(shù)国产成人中文激情小说在线观看网站，為軸心受壓混凝土柱的設(shè)計(jì)提供了較好的計(jì)算依據(jù)。

bank paper：高級(jí)書寫紙 高級(jí)印書紙 高級(jí)打字紙

Backing away 堵墨,滯墨現(xiàn)象 積墨 滯墨 | Bank paper 高級(jí)書寫紙 高級(jí)印書紙 高級(jí)打字紙 | Basis weight 紙張定量(克/平方米)(紙張基本重量) 基重 基重