一种定义
四种语言
0,1,2
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- 英語
- 中國
- 西班牙語
大梁 (n)
Balken (m)
bar (n)
Die Scharniere Al leicht sind variabel, belastbar und vielseitig.
Höhenverstellbaren Arbeitsplatz immer auf ebener Fläche absetzen.
Für viele Zwecke reichen eine oder zwei abschließbare Schublade.
beam (n)
Also ideal for creating supporting beams for panels, etc.
In the case of cranes, I-beams are often used directly as the runway for under-running trolleys.
In structures comprising I-beams, connections must have non-positive joints.
girder (n)
Under-running trolleys can also be used with box girders.
If the bridge girder does not jut out beyond the supports, a counterweight is not required.
A crane trolley with hoist usually moves along the bridge girder, unless the gantry crane features a rail-mounted slewing crane.
