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- approximate beam theory 近似梁理论
- A mechanical model for the offset-axes pendulum drill assembly (OAPDA) was established according to the continuous beam theory and the D. 运用纵横弯曲连续梁理论和达朗伯原理,建立了偏轴钟摆钻具组合动力学分析模型。
- Based on Euler-Bernoulli beam theory and the floor shear vibration model, the motion equation of a single core-tube suspension structure is derived through Lagrange's formulation. 摘要基于欧拉-伯努利梁理论和层剪切模型，应用拉格既日方程推导了单段核筒悬挂减振控制结构的运动方程。
- This paper described the practice of using combined beam theory and suspensory theory,such as roof bolt,net,steel rope,and shotcrete being used together to strenthen roof control. 应用组合梁和悬吊理论,对松软岩层采用支护新技术,即锚、网、带、索、喷等联合支护方式,加强对松软岩层巷道顶板的控制,降低了材料支护费用,提高了软岩巷道支护的可靠性,同时也提高了松软岩巷的掘进速度。
- The flexural deformation equation is formulated for pipe string under vertical and horizontal bending condition based on vertical and horizontal bending beam theory. 运用纵横弯曲梁的理论，建立了管柱在纵横弯曲条件下的挠曲变形方程；
- The Gaussian beam theory has been developed to describe the power characteristics of intracavity continuous-wave singly resonant optical parametric oscillator (ICCWSRO). 建立了描述内腔连续波单共振光学参量振荡器(ICCWSRO)的功率特性的高斯光束理论。
- The objective is to verify the predictions of engineering beam theory in so far as that theory defines the centerline deflection and extreme values of the normal stress. 实验目的是证明现行的工程梁理论，这种理论定义了中心线变形和普通应力的极值。
- Here,the difference of the present theoretical model from that presented by Gibson and Ashby is that,the former can directly use the "beam theory" conveniently whereas the latter can not. 本理论模型与Gibson和Ashby的有关理论体系的不同之处是,前者可直接运用“梁理论”进行方便的分析和推演,而后者则不能。
- In the paper, the thin-walled beam theory has been directly combined with the analytic finite strip technique to derive the elastic governing differentil equations for curved multi-girder bridges by the principle of minimum potential energy. 本文结合弹性薄壁梁理论和解析有限条法,用最小势能原理,推出曲线梁桥的弹性控制微分方程。
- The whole piezolaminated curved beam is equivalent as a single layer structure, and the governing equation of piezolaminated curved beam with small curvature is derived based on one-dimensional beam theory. 将压电夹层圆形曲梁等效为单层结构，基于一维小曲率曲梁理论，建立其控制方程。
- Through the beam theory of relation between bending moment and distortion, the relationship between the bending moment of SMW wall and the field survey result of lateral deformation is established. SMW是一种采用就地搅拌水泥土体然后内插型钢形成的连续柔性挡土结构,适用于深基坑,有良好的应用前景。
- Based on the curved beam theory of the elasto-plastic mechanics, the basic mechanical characteristics of wide sheet bending is analyzed and the thickness variation analytical solution is deduced. 摘要基于弹塑性力学曲梁理论，分析宽板弯曲成形过程基本力学规律，推导了板厚变化精确解析解。
- This is just an approximate figure. 这仅仅是个近似值。
- The Bernoulli-Euler beam theory can be used to estimate the vibration of large diameter ring-type USM, but to calculate the vibration of cylindrical-type USM Timoshenko beam theory must be applied. 伯努利-欧拉梁理论可以用来估算大直径环形行波型超声波电机的振动特性，但计算柱体行波型超声波电机的振动特性时必须采用铁木辛柯梁理论。
- In addition, the validity of applying classical beam theory to calculate supporting parameter was discussed by means of comparing DDM calculating result with that of by the beam theory. 通过DDM计算结果与传统梁理论所得结果的比较及顶板围岩应力分布特徵的分析，指出了利用梁理论进行锚杆支护设计的不合理性。
- The approximate number of boys in the school is300. 这所学校男生数约为三百名。
- Based on general beam theory, space grillage analysis method is adopted to carry through structure simplification and simulation analysis for a typical inverted-Y shape thin-walled box beam bridge. 摘要根据初等梁理论，采用空间梁格分析法对一例典型人字形薄壁箱梁桥进行结构简化及模拟分析。
- The cost will approximate two million dollars. 该项费用差不多达两百万元。
- For a naval ship with a long strength superstructure and a lot of hatch, it is difficult to evaluate the hull girder's strength by general beam theory because of the complexity of the hull structure. 摘要当舰船设有长度较长但开口较多的上层建筑时，其船体结构的复杂性使船体总强度很难用常规的梁理论方法确定。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
