以上来源于: WordNet
Repair immediately when the lacuna is discovered.
发现缺陷后立即修理。
So it is necessary to detect the lacuna (especially the hole) in the log in order to improve its value.
因此,有必要检测原木内部缺陷特别是孔洞缺陷,提高原木使用价值。
Two mixed-valence lacunary tungstodiphosphates with the lacuna located in "belt" and "cap" positions were photosynthesized.
用光合成的方法得到了两个混合价的缺位磷钨杂多化合物,其缺位分别位于“带”和“帽”的位置。
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