The connections between the spherical gaps in the sponge are then enlarged, using a technique called electropolishing to dissolve the surface layer of the metal.
通过采用一种叫电解抛光的技术来溶解金属的表层，使得海绵中球体间隙的连接被扩大了。
Ultracapacitors also have two metal plates, but they are coated with a sponge-like, porous material known as activated carbon.
超级电容也有两块金属片，但其外面有海绵状的多空材料，即活性炭涂层。
Various sponge and PVC materials such as metal forming, and the range of products that use a wide range of high quality.
各种海棉、PVC等材料冲压成型，产品种类繁多，用途广泛，质量优良。
Various sponge and PVC materials such as metal forming, and the range of products that use a wide range of high quality.
各种海棉、PVC等材料冲压成型，产品种类繁多，用途广泛，质量优良。
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