i-beam的例句大全

Study of local bending stress in bottom flange of ⅰ-beam crane rail

起重机工字钢轨下翼缘局部弯曲应力的研究

Summary on the Installation Technology of Hearth Mechanical Equipment of Walking Beam Furnace New Technology in the Cupola ( Part ⅰ): The New Theory of Operation and Coke Bed Control

浅谈步进式加热炉炉底机械设备安装技术冲天炉新技术（1）：冲天炉操作新理论与底焦控制

Research on shear strength of high strength concrete beams: ⅰ Beam without web reinforcement

高强混凝土梁抗剪承载力研究：Ⅰ无腹筋梁

Based on the theory of aperture function of the focused Gaussian beam SHG, the non phase matched ( NPM) SHG process in a crystal sphere is analyzed, and the optimum focus condition of type ⅰ NPM SHG is discussed.

根据聚焦高斯光束二次谐波产生的孔径方程理论，分析了晶体球中的第类非相位匹配二次谐波产生过程，讨论了晶体球中第类非相位匹配二次谐波最佳聚焦参数的选择。