roll ball

常见例句

With a roll ball rocking arm and balance tray. It is a smart design and convenient to be installed quickly.
备有流滚珠式驻持摇臂及平衡托架，设计巧妙，安装简便，快捷。
Polymer micro - ball (PMB) was introduced into water based lubrication as a new type additive based on the "roll ball" model.
根据边界润滑中的“滚珠” 模型，将聚合物形微粒（PMB）作为新型的润滑添加剂引入到水基润滑中。
Polymer micro - ball (PMB) was introduced into water based lubrication as a new type additive based on the "roll ball" model. It is found that PMB are spherical particles in μm scale by SEM.
根据边界润滑中的“滚珠”模型，将聚合物形微粒（PMB）作为新型的润滑添加剂引入到水基润滑中。扫描电镜测度表明PMB在水基液中为均匀分散的微米球形微粒。