计算桥梁箱形截面的特征，包括面积，形心距，形心轴到底面的距离，对X轴的惯性矩 ，对Y轴的惯性矩，自由扭转惯性矩，约束扭转惯性矩-calculating box-shaped bridge characteristics, including size, shape from the heart, heart-shaped shaft from the surface in the end, the moment of inertia of the X-axis, Y-axis of the mo

“富他爸”10C-10CH中文说明书。10通道的遥控器高端但是全英文的说明书往往是模友的心痛之处。-FUTABA 10C-10CH Chinese instructions. Remote high-end 10 channel but the whole English instructions are often friends die the heart of the.

通过导弹的空气动力系数计算导弹的之心运动方程组，并利用MATLAB进行绘图，包括轨迹，速度时间曲线等-Aerodynamic coefficients calculated by missile missile equations of motion of the heart, and using MATLAB graphics, including trajectory, velocity-time curve