Others show extreme close-ups of activity on the Sun’s surface.
其它一些图片则给太阳表面的极端活动做了特写。
Usually there's free activity on the surface of metal because of electronic.
通常金属的表面由于电子可以自由的活动。
High surface activity and good emulsifying action of such surfactants are found.
这类表面活性剂具有较低的表面张力和相当好的乳化性能。
High surface activity and good emulsifying action of such surfactants are found.
这类表面活性剂具有较低的表面张力和相当好的乳化性能。
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