top boom

释义

上弦杆；

SAFETY DEVICE FOR A TOP BOOM PIVOTALLY MOUNTED ON A CRANE BOOM
TOP BOOM TOWN COINS IT IN AGAIN.(News)
Milan Top: boom in Francia e sua maestà la Premier
Nederlandse dendrologie: Geïllustreerde handleiding bij het bepalen van de in Nederland voorkomende soorten en variëteiten der gek...
Investigation of wind potential variation at three measurement sites based on atmospheric stability and power production
BOX-TOP BOOM
Crane and crane assembling method
Ruka na vypínači-jak mají malí plavat na vlnách konjunktury
System for remotely controlling the unreeling and take-up of a hose on a reel
Reliability Analysis of Prestressing Combined Nets with Cables and Concrete Slab