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1·Adjustable foam density. 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 foam density 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.

这一物体太轻了而不可能是一个砖，然而它和固体燃料助推器上的泡沫的密度是相同的。

4·While Burchard was experimenting with refrigerator insulation, he came up with a novel way of molding low-density foam.

那年伯查德正在做有关冷冻机隔热材料的实验，实验中他使用新的方法做出一种低密度的泡沫材料。

5·But they are as intricately built as a lot of shoes, with varying-density memory foam and a carbon-fiber heel cup.

但是，它们和很多鞋子一样造型复杂，有着不同密度的记忆泡棉和碳纤维后跟。

6·A basic line of high density-foam balls to help kids develop throwing and kicking motor skills at an early age.

高密度塑料泡沫(？)球帮助小孩子在低龄时开发的投球与踢球技巧。

7·The results show that the dry density, bending strength and compressive strength of foam concrete block decreased with the increasing of the amount of foam.

研究结果表明：泡沫加入量增加，泡沫混凝土砌块的干密度逐步减小，抗折和抗压强度递减。

8·The dry density, bending strength and compressive strength of foam concrete block increased with the increasing of the amount of fly ash.

粉煤灰加入量增加，泡沫混凝土砌块的干密度递增，抗折和抗压强度增大。

9·Measurements have been made to determine the relation of the tension, the compression and the shearing of PUR foam at low temperature with its density, direction and temperature.

测定了低温下聚氨酯硬泡沫塑料拉伸、剪切和压缩弹性模量与泡沫密度、方向以及温度的关系。

10·Carbon materials, including graphite, carbon fibre, carbon foam and expanded graphite possess the properties of high conductivity, low density and good chemical stability.

碳材料如石墨、碳纤维、碳泡沫和膨胀石墨，他们都具有高导热系数、低密度和良好的化学稳定性。