1. Stone statues were worked from single rectangular blocks of material and retained the compactness of the original shape. 石像是由单个长方形块状材料制成的，并保持原有形状的坚实度。
2. What is so impressive about it, however, is not its lengthiness but rather the reverse — the thrifty compactness of its construction. 然而，令人印象深刻的不是它的冗长，恰恰相反——是它简洁紧凑的结构。
3. Nucleon density Instrument can test its compactness rapidly. 核子密度仪可快速获得其压实度。
4. Unfortunately, the compactness of that code belies its complexity. 不幸的是，代码的紧凑性掩盖了它的复杂性。
5. The instrument is characterized by its compactness and portability. 该仪器的特点是结构紧凑、携带方便。
