上层建筑压缩空气管系(供水管、消防管、烟雾探测管)密性试验。

Superstructure compressed air (water supply, fire fighting, smoke detection) piping to be done air-tightness test.

youdao

微波是一位科学家在经过电波探测管时发现口袋中的巧克力溶化后发现的。

The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.

youdao

碳纳米管可以导电，能沿着涂料传导电流，让工程师通过涂料电性质的变化探测出结构中的薄弱环节。

Since carbon nanotubes conduct electricity, sending a current through the paint would help engineers to detect structural weakness through changes in the paint’s electrical properties.

youdao