... fluted 有沟槽的 fluted spectrum 多段光谱 fluting 开槽，切槽 ...
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... fluted glass 槽纹玻璃,瓦楞玻璃... fluted roll 槽纹辊 fluted spectrum 条段光谱 ...
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... 槽，沟纹 fluted 有沟槽的 fluted spectrum 开槽，切槽 flutter ...
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