low density

基本解释

However, smoking cessation did not affect low density lipoprotein or LDL - the bad cholesterol.
戒烟并不会影响到体内低密度脂蛋白---有害的胆固醇的含量。
The material's large surface area, flexibility, low density, and high conductivity also make it compelling for energy storage.
材料的巨大表面积、弹性、低密度以及高导电性使得它也可以用于储存能量。
Its low density implies that it is about 80 per cent ice to only 20 per cent rock, a far lighter mixture than other large moons of the outer solar system.
土卫八较低的密度表明它可能是由80%的冰和20%的岩石组成的，这比太阳系以外的其他大星球的组成轻了很多。

Those are low density, so they are very permeable to oxygen.
So, for example, we have this average level, and then it can go high where we have the peak, or it can go very low. We can also discuss sound waves, so again it's just the periodic variation of some property -- in this case we're talking about density, so we have high density areas and low density areas.
例如这是平均位置，在峰的位置水位高，在谷水位低，我们也可以,讨论声波它也是某种,量的周期变化，在这里我们,讨论的是密度,我们有高密度区和低密度区。
麻省理工公开课 - 化学原理课程节选
You've probably seen agar plates, if you smear a solution that's contaminated with bacteria on it, then that bacteria will grow on this agar rich medium and you'll get many, many copies of the bacteria that you've smeared at low density onto the plate.
你们大概见过琼脂培养基,如果将有细菌的溶液涂抹在培养基上,细菌就会在富含琼脂的培养基上生长,你会得到许多许多细菌,即使你只涂抹了低浓度溶液
耶鲁公开课 - 生物医学工程探索课程节选

Saturn has such a low density, that if placed in water, it would float.
FORBES: Christmas Dinner Conversation Starters

低密度
Cystal low density were demonstrated in 2 lesions.
2例病灶内可见囊性低密度区。
电子、通信与自动控制技术
低密度

轻质
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。
物理学
低密度