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。
Ultracapacitors also have two metal plates, but they are coated with a sponge-like, porous material known as activated carbon.
本文对钛合金表面不同类型涂层的设计进行了综合评述，并对如何提高生物活性陶瓷涂层与基体的界面结合强度提出建议。
The design of different kinds of coatings on titanium alloy was overviewed and some Suggestions on how to improve the bonding strength between bioactive ceramic coating and substrate were made.
这些化学制剂主要用于溶解剂、乳化剂和涂层作用剂的表面活性剂。
These chemicals are mainly surfactants used as solubilizers, emulsifiers or coating agents.
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