n.缩放仪,伸缩绘图器;放大器;
英文例句/中文翻译:
It is proven by lots of experimental data that better performance of pantograph and catenary of electrified railways can reduce electromagnetic radiant intensity.
通过大量实验数据证明,提高电气化铁路弓网性能,可以降低电磁辐射强度。
Microfilm reader-printer die pantograph machine
缩微胶卷阅读机/打印机
The research purpose of this paper is improvement copper-based powder metallurgical pantograph sliding plate deliver the performances such as density, electrical conductivity and surface hardness, and eventually improve its abrasiveness can.
本论文的研究目的是改善铜基粉末冶金受电弓滑板的致密度、电导率、表面硬度等性能,并最终改善它的磨损性能。