单孔跨径系指标准跨径；的翻译：Single-hole span span refers to standards; 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Refers to the standard single-hole span span;

Single-hole span span refers to standards;

The single-hole span refers to the standard span;

single hole cross-path means standard cross-path;

Single-hole span span refers to standards;