The trench gate extends along a longitudinal direction.
所述沟槽栅极沿纵向延伸。
The width of the trench gate is not uniform along the longitudinal direction;
所述沟槽栅极的宽度沿所述纵向不一致；
The direction of the tension on the smooth muscles is mainly longitudinal.
管壁张力主要沿平滑肌纵轴产生拉应力。
The direction of the tension on the smooth muscles is mainly longitudinal.
管壁张力主要沿平滑肌纵轴产生拉应力。
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