把斜坡抬高或放低，看倾斜角度如何影响文件盒上的平行作用力。
Lower and raise the ramp to see how the Angle of inclination affects the parallel forces acting on the file cabinet.
在实验室小鼠上作的平行研究也显示了相似的防辐射作用。
Parallel studies with laboratory mice also demonstrated a similar protective effect against radiation poisoning.
采用有限元法，对岩体在拉剪综合作用下平行双裂纹相互影响的情况进行了计算。
The interaction between two parallel cracks in rock mass under the combined action of tension and shearing is analyzed by finite element method.
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