1) double hung,double hook
双吊钩
2) twin-lift spreader
双吊具
1.
Container lifting operations with fixed,telescopic,and 4-guide plate fixed twin-lift spreaders are described respectively,aiming at improving container lifting operation modes and thus increasing container terminal efficiency and benefits.
介绍了集装箱双吊具的使用现状,详细论述了固定式、伸缩式和四导板固定式双吊具的吊运模式。
3) parallel running
双吊同步
4) double hanging points
双吊点
5) union purchase
双吊杆
1.
Stresses of union purchase under the influence of tied-guy positions;
稳索系固位置对双吊杆受力的影响
6) hanging double valve system
双吊阀系统
参考词条
补充资料：FOB吊钩下交货
%26#8226; FOB Under Tackle（吊钩下交货）：卖方将货物交到买方指定船只的吊钩所及之处。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。