A system of material boundaries in the form of a solid dielectric rod or dielectric-filled tubular conductor capable of guiding high-frequency electromagnetic waves.

物质边界装置，形状是一根固体电介质杆或充满电介质的管状导体，能够导引高频电磁波。

youdao

Stranded or Solid, tinned copper conductor.

导体使用单条或多条、镀锡软铜线。

youdao

Through process improvement the above mentioned disadvantages can be overcome, so it is recommended that solid aluminum conductor can be widely used in fixedly installed cable.

通过工艺改进，能够克服铝导体的上述缺点，建议在固定敷设电缆中广泛采用实心铝导体。

youdao

Everton, with Mikel Arteta their conductor in central midfield, were showing the neater passing play against a Birmingham side looking solid without carrying much of an attacking threat.

BBC: Birmingham 0-2 Everton