This paper studies the angle of effort-saving φ_s, end angle φ_j and critical angle θ_l according to a problem occurred on the slope.
本文就斜面上一个力学问题综合研究了省力角φ_s、截止角φ_j和临界角θ_t,并对力函数F(φ)有否极值、极值存在时满足的条件及其随倾角φ的变化进行了充分的讨论。
The key to reservoir classification by T2 spectrum of nuclear magnetic resonance log is the determination of T2 cutoff values.
应用核磁共振测井T2谱划分储层类型的关键是T2截止值的确定。
The effect of conditions of heat treatment on the cut-off absorption of glasses and the change of microstructure of glasses were studied.
结果表明,玻璃的截止吸收波长位置取决于热处理条件;采用低温长时间热处理工艺,使所制备的玻璃具有较高的光透过率和完整的吸收边界。
Analysis of iron ore breakeven grade in Jiguanshan Mine;
鸡冠山铁矿放矿截止品位的分析