Make perfect dual layer DVD copy by using the original layer break position.

建立完美的双层DVD使用原始断层位置的副本。

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Only a thick layer of dust proves that people have not gone for a break. Inside the plane. The cabin. The axis of plane symmetry.

只有这层厚厚的尘土说明工作人员并不只是去短暂休息一下（其实好久没人来了）。

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Assemble drill to break through the first layer of crust, the crew deploys a steel pipe with an 11-inch-wide drill bit at the bottom.

为了突破第一层地壳，船员们使用底部装有11英寸宽的钻头的钢管。

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Above-freezing temperatures also led to overflow along the trail, a potentially dangerous situation where water has pushed up through the ice and refrozen, creating a weak top layer of ice that teams and mushers can break through.

NPR: 53-Year-Old Musher Becomes Oldest Iditarod Champ

Also, scientists at the Hong Kong Polytechnic University have been able to build a nano-thin layer of particles of titanium dioxide, a substance that reacts with sunlight to break down dirt and other organic material.

FORBES: Nanotechnology's Disruptive Future

They built a thin layer, or "nanostructure, " using minute particles of titanium dioxide, a substance that reacts with sunlight to break down dirt and other organic material and can be coated on cotton to keep the fabric clean.

CNN: Washing no longer dirty work