洞隙，拼音是dòng xì，汉语词汇，意思是物体上穿通或深陷的部分而产生的空隙。
opening ; hole ; gap ; cavity ; miarolitic ; cave-fissure
在土壤颗粒之间就有着许多微小的空隙和洞隙。
平坦的闸板底部与阀座之间能够实现全周长阀座密封，避免阀座出现可能淤积流体介质、妨碍阀门完全关闭的底部洞隙。
The flat bottom gate provides full perimeter seating against the seat, eliminating pocket in the bottom of the seat that can trap process media and prevent the valve from fully closing.
对洞的中等旋转角，我们揭示此结构的最大绝对带隙可以获得，且该角依赖于洞的半径和背景材料的折射指数。
We reveal that a maximum absolute bandgap for this structure is achieved for an intermediate rotation Angle of the holes.
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