It investigates the focal switch phenomenon of a tilted phase L-G beam passing through a system with the aperture and lens separated.
研究了相位倾斜l - G光束通过光阑——透镜分离系统的焦开关现象。
The integrated analysis of crack failure for L-B Composite Brake Beam Bar Flange Slab was made by means of SEM, microscope and chemical analysis.
采用残余应力和力学性能测定、化学成分分析、断口扫描及金相检验等方法对铁路货车用l - B型组合式制动梁撑杆翼板产生裂纹的原因进行了分析。
The integrated analysis of crack failure for L-B Composite Brake Beam Bar Flange Slab was made by means of SEM, microscope and chemical analysis.
采用残余应力和力学性能测定、化学成分分析、断口扫描及金相检验等方法对铁路货车用l - B型组合式制动梁撑杆翼板产生裂纹的原因进行了分析。
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