The base line can be set out as a single or double chain.

基线可作为一条单链系或双链系.

辞典例句

She wore a huge, heavy, double chain around her neck, refusing to part with it.

她颈周戴一条巨大厚重并环绕两周的链子, 拒绝别人把链子拿走.

互联网

Power - driven roller has a sprocket, double chain, O - belt, high - speed form of flat belt.

动力辊筒驱动有单链轮 、 双链轮 、 O 型 皮带 、 高速 平面传动带等形式.

互联网