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。
The outer layer of skin is made up of fibers woven in a three-dimensional pattern that acts like a sponge.
皮肤表层是由纤维以三维模式交织构成，起到了海绵一样的作用。
The head of electric iron is heated to the melting point of welding solder, which is immersed with an even layer of solder and clean the head with clean, wet sponge or wet cloth.
电烙铁准备 （The preparation of electric iron） 将烙铁头加热至可以熔化焊料的温度， 在头部浸一层薄而均匀的焊料， 并用清洁潮湿的海绵或湿布擦拭烙铁头表面。
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