向斜(syncline)属于褶曲的基本形态之一,与背斜相对。向斜为褶曲构造之一部分,两翼指向上方,中央向下屈曲。其在褶弯内之岩层,愈往中央,愈为年轻。向斜之两翼,如向同一方向倾斜,曰转倒褶曲;如两翼之倾斜,几近水平,或作水平状态,曰偃卧褶曲。向斜与背斜相连,彼此方向相反,常使地壳岩层,呈现波状。
我拔腿向斜坡下跑去,却被什么东西狠狠地撞了一下。
I turned on my heels and started down the ramp only to be shoved, hard, by something.
请记住为路径名使用前向斜杠。
物体运动,并向上加速度,因为摩擦力方向斜上,值为这个。
It is moving, so sure, it's going to be accelerated so the frictional force is in this direction, has this value.
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