N-COUNT If you say that there is a lacuna in something such as a document or a person's argument, you mean that it does not deal with an important issue and is therefore not effective or convincing. (文件、论点等中对重要问题的)缺漏 [正式]
If there are lacunas or holes in concrete structure, it will affect the supportability and endurance of concrete structure seriously.
混凝土结构内部若存在不密实区或空洞等缺陷，必然会严重影响结构的承载能力和耐久性。
The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
由于锚固体系中有不同大小和程度的缺陷，声波在传播过程中将产生能量衰减、相位突变及频散现象。
The arteriolar sclerosis that results from chronic hypertension leads to small lacunar infarcts or "lacunas" one of which is seen here in the pons.
缓进型高血压小动脉硬化导致小范围的腔隙性梗死灶，脑桥上可见一此种病变。
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