Adjustable foamdensity. Denser it is, then harder it is, hence more material used.
泡棉有分软硬。硬的自然是比较损耗材料。
2
The effects of impregnant kind, the dosage of antistatic agent, solid content and the viscosity of the impregnant, and foamdensity on the antistatic property of the polyurethane foams were discussed.
讨论了浸渍胶液种类、抗静电剂用量、浸渍液固含量和泡沫体密度对抗静电泡沫性能的影响。
3
The object was too light to be a brick, but it was the same density as a piece of foam from a solid rocket booster.