Uses in the analysis from the surface to the spot, is thorough by the level, layer upon layer progressives principle.

分析采用了由面到点，逐层深入，层层递进的原则。

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You can witness, plaque was gently removed from the surface, there are patches of skin on the spot to clean up the feeling of really wonderful!

斑从表面被轻轻取下，有斑的皮肤当场变干净的感觉真的很奇妙！

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Scientists speculate that the silicates stuck to the mantle might also be caught up in mantle convection and carried to the surface, accounting for reports of core material in lava erupting from hot, spot plumes, like those under Hawaii.

BBC: Earth's wobbles reveal deep secrets