并用线性化的屈曲方程求解圆环和两铰圆弧拱在匀布径向力作用下的临界荷载。
The critical loads of rings and pined circular arches are calculated using the linearized buckling equations.
圴匀地喷，再用干净的布或是可以循环使用的纸巾用力擦拭，清阴凉干燥的地方储藏。
Spray evenly, wipe thoroughly with a clean dry cloth or recycled paper towel. Store in a cool dry place.
采用拱背非均布荷载作用模式，利用理论计算公式结合弹性匀质圆环法对某城市地铁区间隧道衬砌管片进行内力计算。
The paper introduces uneven load in the arch-back to calculate the internal force in the linking of an interval tunnel for a metro line by theoretical formula and elastic uniform rigidity ring model.
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