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cancellation | |||
spongeous structure (structura spongeosa) | |||
spongy structure | |||
spongelike structure | |||
flocculent structure | |||
flocculent texture; sponge-like texture; spongeous texture; spongy texture | |||
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spongy structure |
海绵状 结构 : 1 phrase in 1 subject |
Engineering geology | 1 |