low specific density低比重
low-density solids低密度固体颗粒
low bone density低骨密度
low-density低密度;分别应用低密度
low-density cholesterol低密度胆固醇
low-density beam低密度粒子束
low-density oil轻质石油
low-density flows低密度流动
low power density低功率密度
Cystal low density were demonstrated in 2 lesions.
2例病灶内可见囊性低密度区。
参考来源 - 腺性膀胱炎的CT诊断The high strength and low density organic fibers reinforced resin matrix composites are important armor materials recovering middle-small caliber kinetic energy projectile . cannonball broken rages and second effect inside tank vehicle , also are materials difficult to machine.
轻质高强有机纤维增强聚合物基复合材料是防御中小口径穿甲弹、炮弹破片以及坦克车辆内部防二次效应的重要装甲材料，也是难加工材料。
参考来源 - 高聚物及其复合材料的应用技术研究