In this case, summed up a set of better clay-bound gravel surface mask technology, to a certain extent, improve the traffic conditions in the rural areas has very important significance.

在此情况下，总结出一套较完善的泥结碎石路面罩面技术，在一定程度上改善农村的交通状况具有非常重要的意义。

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When applied, they do not correct skin cells, instead they "mask" the damaged skin only on the surface of the skin for a temporary period.

当使用这些产品时，不加以改正为适用于肌肤细胞的保养品，那么使用这些产品，就如同戴上一层损坏肌肤皮表面的暂时面具。

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In addition, the solder mask coating on printed circuit board, with the plasma treatment, can also obtain certain roughness and high active surface, thus improving the solder coating adhesion.

另外，在阻焊膜涂覆前，用等离子体对印制电路板面处理一下，还可获得一定的粗糙度和高活性的表面，从而提高阻焊膜层的附着力。

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This involves shining light through a patterned mask and on to the surface of a chip, so as to change the chemical properties of the exposed parts of that chip.

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Obviously at 400 feet it's really quite dark but at the surface it starts off being very very light, even without a mask I can tell that.

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