皮质脊髓前束 [解剖] anterior corticospinal tract ; ventral corticospinal tract ; anterior corticospinal tract Chinese ; fasciculus cerebrospinalis anterior
脊髓前角灰质炎 antecedent paccumulationmyelitis
脊髓小脑前束 [解剖] anterior spinocerebellar tract ; Gower's tract ; tract of Gowers ; anterior spinocerebellar tract Chinese
脊髓前动脉 [解剖] anterior spinal artery ; [解剖] arteria spinalis anterior ; anterior spinal
脊柱前侧凸 lordoscoliosis ; scoliolordosis
急性脊髓前角灰质炎 acute poliomyelites ; acute anterior poliomyelitis
前庭脊髓束 [解剖] vestibulospinal tract ; VSTS
脊柱前凸过度 hyperoirdosis ; hyperlordosis
脊柱前曲 lordosis
脊柱前弯症 lordosis
沉积物被从两侧的弧前脊和岛弧冲到盆地，使该处地壳承重增加，形成洼地。
Sediments washed into the basin from both the fore-arc ridge and island arc weigh down the crust in this area, creating the depression.
“几十年前，冰川坐落在这道海脊上，其摩擦力阻止了冰川流动，”他解释道。
"Some decades ago, the glacier was sitting on this ridge and the friction of the ridge was restraining the flow of the glacier," he explained.
就在我们远眺处的下方，黝黑的沟状脊代表了另外一种50万年的沉积层，更远处铺满了玄武岩，520万年前，这块巨大的平原被淹没在火山岩浆之中。
Below us dark, gullied ridges held another half million years of sediments. Beyond them was the basalt, laid down when this vast plain was swamped in lava, 5.2 million years ago.
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