【运输】牵引钩

进行拖钩电动释放试验和拖钩的负荷试验。

TOWING

towed aircraft【航】;towing aircraft【航】

towing equipment

overhang of towing attachment【车辆】

towing vessel【船】

towing arch【水运】

ship model towing tank【水运】

aircraft adaptations to facilitate TOWING