The spectacles consist of a spectacles frame, spectacle lenses and opaque material layers.

由镜架、眼镜片和不透明材料层组成。

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The perovskite solar cells made previously used an opaque material on the back to collect electrical current.

先前的钙钛矿型太阳能电池使用背面不透明的材料收集电流。

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None rigid unsupported transparent, translucent, and opaque material, whether plain, embossed, molded or otherwise surface treated.

柔软不能自主成形的透明、半透明及不透明材料。

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This rough surface also makes the material more opaque.

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By replacing the opaque plastic "tray" inside the CD case with clear material, for example, Shindo has been able to utilize even that tiny space.

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