1.【机】撑杆
2.【船】天幕边索;支索;(汽艇用)分隔索
1.a rod attached to a horizontal beam on a mast, used for securing a sail
2.a support for the ring that holds a boom to a mast
1.Installation of Automatic Fault Testing Set for Jackstay of Huge Scale of Cable Machine
大型缆机支索器故障自动检测装置的安装
2.Analysis of Cracks on a Main Jackstay
某主减撑杆裂纹分析