The cleanroom is designed to be completely dust-free.

无尘室被设计成完全无尘的。

The laboratory must be dust-free to ensure accurate results.

实验室必须是无尘的，以确保准确的结果。

Keeping the room dust-free is essential for people with allergies.

保持房间无尘的对过敏患者至关重要。

We need a dust-free environment for assembling the electronic parts.

我们需要一个无尘的环境来组装电子零件。

The company invested in dust-free technology for their production line.

公司在他们的生产线上投资了无尘的技术。

Inter woven from asbestos dust free warp and weft yarns.

本产品适用石棉经纬交织而成.

Absorbent carbon breathing filter for air flow and dust-free inside.

灯内装呼吸器，确保空气的流畅及防止灰尘进入。

Thanks for watching video How To Keep Your Television Dust Free.

感谢收看“怎样清除电视机上的灰尘”视频节目。

Film should be kept clean, dust free, and handled only by the edges.

胶片应保持清洁，没有灰尘，用手只能拿胶片的边部。

Select a sturdy , well-ventilated, dust-free area to position the product.

选择一个稳固、通风良好且无尘的区域放置产品。